Finding the Fourth Proportional to 131,567.60, 181,561.56 and 71,951.60

Step by Step Solution

1. Step 1: Write the proportion equation
   131,567.60 : 181,561.56 = 71,951.60 : x
2. Step 2: Convert to fraction form
   131,567.60/181,561.56 = 71,951.60/x
3. Step 3: Cross multiply
   131,567.60x = 181,561.56 × 71,951.60
4. Step 4: Simplify right side
   131,567.60x = 13,063,644,740.50
5. Step 5: Solve for x
   x = 13,063,644,740.50/131,567.60
6. Step 6: Final answer
   x = 99,292.26