OK, here are the steps to solve this:
* Projected sales increase: $87,000
* Projected cash expense increase: $42,000
* So projected operating income increase = $87,000 - $42,000 = $45,000
* Fixed assets required = $54,000
* Depreciation period = 5 years
* So annual depreciation = $54,000 / 5 = $10,800
* Marginal tax rate = 26%
* Tax shield from depreciation = $10,800 * (1 - 0.26) = $7,920
* Operating cash flow (using tax shield approach)
= $45,000 + $7,920 = $52,920
So the operating cash flow of the project using the tax shield approach is $52,920
Let me know if you have any other questions!