Finding the Fourth Proportional to 131,360.50, 181,281.81 and 71,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,360.50 : 181,281.81 = 71,744.50 : x
2. Step 2: Convert to fraction form
   131,360.50/181,281.81 = 71,744.50/x
3. Step 3: Cross multiply
   131,360.50x = 181,281.81 × 71,744.50
4. Step 4: Simplify right side
   131,360.50x = 13,005,972,817.55
5. Step 5: Solve for x
   x = 13,005,972,817.55/131,360.50
6. Step 6: Final answer
   x = 99,009.77