Final answer:
To calculate the total cash flow in the final year of the project, add the operating cash flow, tax payment, and salvage value of the fixed assets.
Step-by-step explanation:
To calculate the total cash flow in the final year of the project, we need to consider the operating cash flow, the tax payment, and the salvage value of the fixed assets. The operating cash flow per year is $67,900, so the total operating cash flow over three years is $67,900 x 3 = $203,700.
The tax rate is 21%, so the tax payment in the final year will be 21% x $203,700 = $42,717.
The fixed assets can be sold for $225,000 at the end of the project, so the salvage value is $225,000.
The total cash flow in the final year is the sum of the operating cash flow, the tax payment, and the salvage value: $203,700 + $42,717 + $225,000 = $471,417.