A manufacturer of backpacks plans to introduce a new line. Equipment and production costs will be incurred immediately and will total $7,272,727. The company expects to earn a profit of $20 per backpack, and sales are estimated to be 100,000 in the first year (assume that the cash flow comes in at the end of the year). Sales are then expected to grow by 10% per year in each of the next three years (in year 2, year 3, and year 4) but the price is expected to remain at $20 throughout. What is the internal rate of return of this project