The internai rate of retum method is used by goyston Construction Co. in analyzing a capital expenditure proporal that involves an irvestment of s149,630 and annual. net cash nows of $45,000 for each of the six years of its useful Me. This information has been collected in the Microsoft Excel Online file. Open the spreaidsheet, perform the required analysis, and input your answers in the question below. Open spreadsheet Determine the internal rate of return for the proposal