Finding the Fourth Proportional to 113,648.96, 156,800.76 and 65,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,648.96 : 156,800.76 = 65,892.72 : x
2. Step 2: Convert to fraction form
   113,648.96/156,800.76 = 65,892.72/x
3. Step 3: Cross multiply
   113,648.96x = 156,800.76 × 65,892.72
4. Step 4: Simplify right side
   113,648.96x = 10,332,028,574.47
5. Step 5: Solve for x
   x = 10,332,028,574.47/113,648.96
6. Step 6: Final answer
   x = 90,911.77