Finding the Fourth Proportional to 261,061.93, 391,553.88 and 83,550.43

Step by Step Solution

1. Step 1: Write the proportion equation
   261,061.93 : 391,553.88 = 83,550.43 : x
2. Step 2: Convert to fraction form
   261,061.93/391,553.88 = 83,550.43/x
3. Step 3: Cross multiply
   261,061.93x = 391,553.88 × 83,550.43
4. Step 4: Simplify right side
   261,061.93x = 32,714,495,042.17
5. Step 5: Solve for x
   x = 32,714,495,042.17/261,061.93
6. Step 6: Final answer
   x = 125,313.16