Finding the Fourth Proportional to 83,401.92, 125,061.84 and 39,005.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83,401.92 : 125,061.84 = 39,005.28 : x
2. Step 2: Convert to fraction form
   83,401.92/125,061.84 = 39,005.28/x
3. Step 3: Cross multiply
   83,401.92x = 125,061.84 × 39,005.28
4. Step 4: Simplify right side
   83,401.92x = 4,878,072,086.52
5. Step 5: Solve for x
   x = 4,878,072,086.52/83,401.92
6. Step 6: Final answer
   x = 58,488.73