Finding the Fourth Proportional to 9,520.32, 14,280.96 and 5,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.32 : 14,280.96 = 5,622.72 : x
2. Step 2: Convert to fraction form
   9,520.32/14,280.96 = 5,622.72/x
3. Step 3: Cross multiply
   9,520.32x = 14,280.96 × 5,622.72
4. Step 4: Simplify right side
   9,520.32x = 80,297,839.41
5. Step 5: Solve for x
   x = 80,297,839.41/9,520.32
6. Step 6: Final answer
   x = 8,434.36