Finding the Fourth Proportional to 83,490.50, 125,276.85 and 39,109.58

Step by Step Solution

1. Step 1: Write the proportion equation
   83,490.50 : 125,276.85 = 39,109.58 : x
2. Step 2: Convert to fraction form
   83,490.50/125,276.85 = 39,109.58/x
3. Step 3: Cross multiply
   83,490.50x = 125,276.85 × 39,109.58
4. Step 4: Simplify right side
   83,490.50x = 4,899,525,300.42
5. Step 5: Solve for x
   x = 4,899,525,300.42/83,490.50
6. Step 6: Final answer
   x = 58,683.63