Finding the Fourth Proportional to 17,628.72, 24,321.51 and 10,557.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,628.72 : 24,321.51 = 10,557.42 : x
2. Step 2: Convert to fraction form
   17,628.72/24,321.51 = 10,557.42/x
3. Step 3: Cross multiply
   17,628.72x = 24,321.51 × 10,557.42
4. Step 4: Simplify right side
   17,628.72x = 256,772,396.10
5. Step 5: Solve for x
   x = 256,772,396.10/17,628.72
6. Step 6: Final answer
   x = 14,565.57