Finding the Fourth Proportional to 76,139.59, 105,073.92 and 41,687.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,139.59 : 105,073.92 = 41,687.34 : x
2. Step 2: Convert to fraction form
   76,139.59/105,073.92 = 41,687.34/x
3. Step 3: Cross multiply
   76,139.59x = 105,073.92 × 41,687.34
4. Step 4: Simplify right side
   76,139.59x = 4,380,252,194.86
5. Step 5: Solve for x
   x = 4,380,252,194.86/76,139.59
6. Step 6: Final answer
   x = 57,529.23