Finding the Fourth Proportional to 17,624.88, 24,321.52 and 10,555.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,624.88 : 24,321.52 = 10,555.20 : x
2. Step 2: Convert to fraction form
   17,624.88/24,321.52 = 10,555.20/x
3. Step 3: Cross multiply
   17,624.88x = 24,321.52 × 10,555.20
4. Step 4: Simplify right side
   17,624.88x = 256,718,507.90
5. Step 5: Solve for x
   x = 256,718,507.90/17,624.88
6. Step 6: Final answer
   x = 14,565.69