please include step by step process for solving, including equations.

Northeastern costs approximately $50,000 per year for a four-year program, whether completed in four years or five. Assume that a student's parents realized 15 years ago that college was going to cost $50,000 per year for four years and wondered how much they would have to save each year to have the money to pay for the student's education. The assumption is that payments are made into the college fund each year, and payments are withdrawn from the fund at the end of the relevant years. . The key information for this scenario is as follows: The number of years of contributions is 18. The college payments will be made in years 15, 16, 17, and 18. The interest rate is 10 percent. College costs are $50,000 per year and are the same for each of the four years. Using the key information for the scenario above, how much would the parents have to save each year for 18 years to have exactly the amount of money needed to pay the student's expenses? (Solve for the annual savings that will exactly match the amount saved to the amount needed for college.) Be sure to include your calculation formulas in your answer. Complete this exercise Word or Excel and upload it to Canvas