Finding the Fourth Proportional to 144,801.72, 199,834.29 and 81,160.02

Step by Step Solution

1. Step 1: Write the proportion equation
   144,801.72 : 199,834.29 = 81,160.02 : x
2. Step 2: Convert to fraction form
   144,801.72/199,834.29 = 81,160.02/x
3. Step 3: Cross multiply
   144,801.72x = 199,834.29 × 81,160.02
4. Step 4: Simplify right side
   144,801.72x = 16,218,554,973.09
5. Step 5: Solve for x
   x = 16,218,554,973.09/144,801.72
6. Step 6: Final answer
   x = 112,005.26