The loan payments are $$8216\mathrm{.}22$ per year. Suppose you decide to pay off the loan at time $4.$ How much would you have to pay $($including the time $4$ payment$),$ assuming there are no penalties for early repayment?

Context: Suppose you take a $7$ year loan of $$40,000$ with an interest rate of $10\%$ and annual payments starting at the end of year $1.$ What are the annual loan payments?

Please explain how you get the solution $to$ the early repayment