Finding the Fourth Proportional to 17,657.16, 24,388.43 and 13,200.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,657.16 : 24,388.43 = 13,200.69 : x
2. Step 2: Convert to fraction form
   17,657.16/24,388.43 = 13,200.69/x
3. Step 3: Cross multiply
   17,657.16x = 24,388.43 × 13,200.69
4. Step 4: Simplify right side
   17,657.16x = 321,944,038.01
5. Step 5: Solve for x
   x = 321,944,038.01/17,657.16
6. Step 6: Final answer
   x = 18,233.06