Finding the Fourth Proportional to 71,585.52, 98,784.72 and 39,756.44

Step by Step Solution

1. Step 1: Write the proportion equation
   71,585.52 : 98,784.72 = 39,756.44 : x
2. Step 2: Convert to fraction form
   71,585.52/98,784.72 = 39,756.44/x
3. Step 3: Cross multiply
   71,585.52x = 98,784.72 × 39,756.44
4. Step 4: Simplify right side
   71,585.52x = 3,927,328,793.60
5. Step 5: Solve for x
   x = 3,927,328,793.60/71,585.52
6. Step 6: Final answer
   x = 54,862.06