To finance his education, Chris took out student loans totalling $31,600. He consolidated these loans into a single loan with monthly payments for 10 years and an interest rate of 7.8%. After making payments for 3 years, his grandfather has graciously offered to pay off the remaining balance. Calculate the amount needed to pay off his loan. The amount needed to pay off this loan after 3 years is $ (Round to the nearest cent as needed.)