Finding the Fourth Proportional to 126,760.28, 175,047.72 and 81,516.83

Step by Step Solution

1. Step 1: Write the proportion equation
   126,760.28 : 175,047.72 = 81,516.83 : x
2. Step 2: Convert to fraction form
   126,760.28/175,047.72 = 81,516.83/x
3. Step 3: Cross multiply
   126,760.28x = 175,047.72 × 81,516.83
4. Step 4: Simplify right side
   126,760.28x = 14,269,333,950.30
5. Step 5: Solve for x
   x = 14,269,333,950.30/126,760.28
6. Step 6: Final answer
   x = 112,569.45