Finding the Fourth Proportional to 9,520.56, 14,287.33 and 5,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.56 : 14,287.33 = 5,724.50 : x
2. Step 2: Convert to fraction form
   9,520.56/14,287.33 = 5,724.50/x
3. Step 3: Cross multiply
   9,520.56x = 14,287.33 × 5,724.50
4. Step 4: Simplify right side
   9,520.56x = 81,787,820.59
5. Step 5: Solve for x
   x = 81,787,820.59/9,520.56
6. Step 6: Final answer
   x = 8,590.65