Aon Corp. is considering an investment project with the following cash flows. a. If the discount rate is 7 percent, what is the future value of these cash flows at the end of Year 4? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the future value at an interest rate of 12 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the future value at an interest rate of 19 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)