Finding the Fourth Proportional to 140,505.38, 193,900.32 and 76,847.30

Step by Step Solution

1. Step 1: Write the proportion equation
   140,505.38 : 193,900.32 = 76,847.30 : x
2. Step 2: Convert to fraction form
   140,505.38/193,900.32 = 76,847.30/x
3. Step 3: Cross multiply
   140,505.38x = 193,900.32 × 76,847.30
4. Step 4: Simplify right side
   140,505.38x = 14,900,716,061.14
5. Step 5: Solve for x
   x = 14,900,716,061.14/140,505.38
6. Step 6: Final answer
   x = 106,050.86