Finding the Fourth Proportional to 131,835.98, 181,932.55 and 71,405.22

Step by Step Solution

1. Step 1: Write the proportion equation
   131,835.98 : 181,932.55 = 71,405.22 : x
2. Step 2: Convert to fraction form
   131,835.98/181,932.55 = 71,405.22/x
3. Step 3: Cross multiply
   131,835.98x = 181,932.55 × 71,405.22
4. Step 4: Simplify right side
   131,835.98x = 12,990,933,757.91
5. Step 5: Solve for x
   x = 12,990,933,757.91/131,835.98
6. Step 6: Final answer
   x = 98,538.61