Finding the Fourth Proportional to 71,584.20, 98,784.72 and 39,752.52

Step by Step Solution

1. Step 1: Write the proportion equation
   71,584.20 : 98,784.72 = 39,752.52 : x
2. Step 2: Convert to fraction form
   71,584.20/98,784.72 = 39,752.52/x
3. Step 3: Cross multiply
   71,584.20x = 98,784.72 × 39,752.52
4. Step 4: Simplify right side
   71,584.20x = 3,926,941,557.49
5. Step 5: Solve for x
   x = 3,926,941,557.49/71,584.20
6. Step 6: Final answer
   x = 54,857.66