2.50 points Problem 5-50 Variable Interest Rates [LO 1 A 9-year annuity pays $3,000 per month, and payments are made at the end of each month. The interest rate is 9 percent compounded monthly for the first four years, and 7 percent compounded monthly thereafter Required What is the present value of the annuity? (Enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) Present value S 235154