What is the INTERNAL RATE OF RETURN for the project shown below? (Highlighted are answers to questions that may help with finding the answer to #12. I mainly need steps how to find the internal rate of return.)

A capital investment project is estimated to have the following after-tax cash flows, by year: (Ch9) S35 S13 S16 $16 Use the information in the table above for the following questions. The company utilizes a discount rate of 12% to evaluate capital projects. You may have rounding errors in your calculations so choose the closest answer 9) The PAYBACK for the project shown above is a) 2.37 b) 2.00 c) 3.00 d) 2.50 10) The DISCOUNTED PAYBACK for the project shown above is: a) 2.57 b) 3.08 c) 3.20 d) 3.56 11) The NET PRESENT VALUE for the project shown above is a) $10,708 b) $9,325 c) $46,527 d) $11,213 12) The INTERNAL RATE OF RETURN for the project shown above is a) 21.49% b) 21.42% c) 19.27% d) 23.62%