Finding the Fourth Proportional to 131,665.27, 181,647.33 and 91,358.86

Step by Step Solution

1. Step 1: Write the proportion equation
   131,665.27 : 181,647.33 = 91,358.86 : x
2. Step 2: Convert to fraction form
   131,665.27/181,647.33 = 91,358.86/x
3. Step 3: Cross multiply
   131,665.27x = 181,647.33 × 91,358.86
4. Step 4: Simplify right side
   131,665.27x = 16,595,092,082.61
5. Step 5: Solve for x
   x = 16,595,092,082.61/131,665.27
6. Step 6: Final answer
   x = 126,040.02