A chemical engineer who is smitten with wanderlust wants to build a reserve fund that will be sufficient to permit her to take time off from work to travel around the world. Her goal is to save enough money over the next 3 years so that when she begins her trip, the amount she has accumulated will have the same buying power as $72,000 today. If she expects to earn a market rate of 12% per year on her investments and inflation averages 5% per year over the 3 years, how much must she save each year to reach her goal?