Finding the Fourth Proportional to 140,154.72, 193,414.20 and 76,494

Step by Step Solution

1. Step 1: Write the proportion equation
   140,154.72 : 193,414.20 = 76,494 : x
2. Step 2: Convert to fraction form
   140,154.72/193,414.20 = 76,494/x
3. Step 3: Cross multiply
   140,154.72x = 193,414.20 × 76,494
4. Step 4: Simplify right side
   140,154.72x = 14,795,025,814.80
5. Step 5: Solve for x
   x = 14,795,025,814.80/140,154.72
6. Step 6: Final answer
   x = 105,562.09