Finding the Fourth Proportional to 71,598.72, 98,809.74 and 39,766.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,598.72 : 98,809.74 = 39,766.94 : x
2. Step 2: Convert to fraction form
   71,598.72/98,809.74 = 39,766.94/x
3. Step 3: Cross multiply
   71,598.72x = 98,809.74 × 39,766.94
4. Step 4: Simplify right side
   71,598.72x = 3,929,361,002.00
5. Step 5: Solve for x
   x = 3,929,361,002.00/71,598.72
6. Step 6: Final answer
   x = 54,880.32