Finding the Fourth Proportional to 71,494.42, 98,664.33 and 39,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,494.42 : 98,664.33 = 39,230.50 : x
2. Step 2: Convert to fraction form
   71,494.42/98,664.33 = 39,230.50/x
3. Step 3: Cross multiply
   71,494.42x = 98,664.33 × 39,230.50
4. Step 4: Simplify right side
   71,494.42x = 3,870,650,998.07
5. Step 5: Solve for x
   x = 3,870,650,998.07/71,494.42
6. Step 6: Final answer
   x = 54,139.20