The internat rate of return method is used by Queen Eros. Construction Co, in analyzing a capital erpenditure proposal that involves an iavestment of $36,872 and annusl net cash fows of $11,000 for each of the five vears of its useful life. Present Value of an Annulty of $1 at Compound Interest a. Determine a present value factor for an annuity of $1 which can be used hin betermining the internal rate of return. If required, round your answer to three decimal places. b. Using the factor determined in part (a) and the present value of an annuity of 51 table above, determine the internal fate of return for the proposal. %