Finding the Fourth Proportional to 131,697.86, 181,743.05 and 71,268.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,697.86 : 181,743.05 = 71,268.50 : x
2. Step 2: Convert to fraction form
   131,697.86/181,743.05 = 71,268.50/x
3. Step 3: Cross multiply
   131,697.86x = 181,743.05 × 71,268.50
4. Step 4: Simplify right side
   131,697.86x = 12,952,555,191.45
5. Step 5: Solve for x
   x = 12,952,555,191.45/131,697.86
6. Step 6: Final answer
   x = 98,350.53