Finding the Fourth Proportional to 71,443.92, 98,592.44 and 39,612

Step by Step Solution

1. Step 1: Write the proportion equation
   71,443.92 : 98,592.44 = 39,612 : x
2. Step 2: Convert to fraction form
   71,443.92/98,592.44 = 39,612/x
3. Step 3: Cross multiply
   71,443.92x = 98,592.44 × 39,612
4. Step 4: Simplify right side
   71,443.92x = 3,905,443,733.28
5. Step 5: Solve for x
   x = 3,905,443,733.28/71,443.92
6. Step 6: Final answer
   x = 54,664.47