Finding the Fourth Proportional to 131,796.90, 181,880.58 and 71,367.55

Step by Step Solution

1. Step 1: Write the proportion equation
   131,796.90 : 181,880.58 = 71,367.55 : x
2. Step 2: Convert to fraction form
   131,796.90/181,880.58 = 71,367.55/x
3. Step 3: Cross multiply
   131,796.90x = 181,880.58 × 71,367.55
4. Step 4: Simplify right side
   131,796.90x = 12,980,370,477.78
5. Step 5: Solve for x
   x = 12,980,370,477.78/131,796.90
6. Step 6: Final answer
   x = 98,487.68