Finding the Fourth Proportional to 14,397.72, 21,591.12 and 5,631.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,397.72 : 21,591.12 = 5,631.54 : x
2. Step 2: Convert to fraction form
   14,397.72/21,591.12 = 5,631.54/x
3. Step 3: Cross multiply
   14,397.72x = 21,591.12 × 5,631.54
4. Step 4: Simplify right side
   14,397.72x = 121,591,255.92
5. Step 5: Solve for x
   x = 121,591,255.92/14,397.72
6. Step 6: Final answer
   x = 8,445.17