Finding the Fourth Proportional to 131,768.35, 181,841.79 and 71,340.31

Step by Step Solution

1. Step 1: Write the proportion equation
   131,768.35 : 181,841.79 = 71,340.31 : x
2. Step 2: Convert to fraction form
   131,768.35/181,841.79 = 71,340.31/x
3. Step 3: Cross multiply
   131,768.35x = 181,841.79 × 71,340.31
4. Step 4: Simplify right side
   131,768.35x = 12,972,649,669.55
5. Step 5: Solve for x
   x = 12,972,649,669.55/131,768.35
6. Step 6: Final answer
   x = 98,450.42