Finding the Fourth Proportional to 9,008.56, 12,432.72 and 5,472.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,008.56 : 12,432.72 = 5,472.12 : x
2. Step 2: Convert to fraction form
   9,008.56/12,432.72 = 5,472.12/x
3. Step 3: Cross multiply
   9,008.56x = 12,432.72 × 5,472.12
4. Step 4: Simplify right side
   9,008.56x = 68,033,335.77
5. Step 5: Solve for x
   x = 68,033,335.77/9,008.56
6. Step 6: Final answer
   x = 7,552.08