Finding the Fourth Proportional to 131,666.27, 181,648.71 and 91,359.86

Step by Step Solution

1. Step 1: Write the proportion equation
   131,666.27 : 181,648.71 = 91,359.86 : x
2. Step 2: Convert to fraction form
   131,666.27/181,648.71 = 91,359.86/x
3. Step 3: Cross multiply
   131,666.27x = 181,648.71 × 91,359.86
4. Step 4: Simplify right side
   131,666.27x = 16,595,400,714.78
5. Step 5: Solve for x
   x = 16,595,400,714.78/131,666.27
6. Step 6: Final answer
   x = 126,041.40