Finding the Fourth Proportional to 131,698.86, 181,744.43 and 71,269.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,698.86 : 181,744.43 = 71,269.50 : x
2. Step 2: Convert to fraction form
   131,698.86/181,744.43 = 71,269.50/x
3. Step 3: Cross multiply
   131,698.86x = 181,744.43 × 71,269.50
4. Step 4: Simplify right side
   131,698.86x = 12,952,834,653.89
5. Step 5: Solve for x
   x = 12,952,834,653.89/131,698.86
6. Step 6: Final answer
   x = 98,351.91