Finding the Fourth Proportional to 93,013.78, 139,517.56 and 40,423.27

Step by Step Solution

1. Step 1: Write the proportion equation
   93,013.78 : 139,517.56 = 40,423.27 : x
2. Step 2: Convert to fraction form
   93,013.78/139,517.56 = 40,423.27/x
3. Step 3: Cross multiply
   93,013.78x = 139,517.56 × 40,423.27
4. Step 4: Simplify right side
   93,013.78x = 5,639,755,997.62
5. Step 5: Solve for x
   x = 5,639,755,997.62/93,013.78
6. Step 6: Final answer
   x = 60,633.55