Finding the Fourth Proportional to 17,553.17, 24,209.42 and 13,260.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,553.17 : 24,209.42 = 13,260.57 : x
2. Step 2: Convert to fraction form
   17,553.17/24,209.42 = 13,260.57/x
3. Step 3: Cross multiply
   17,553.17x = 24,209.42 × 13,260.57
4. Step 4: Simplify right side
   17,553.17x = 321,030,758.30
5. Step 5: Solve for x
   x = 321,030,758.30/17,553.17
6. Step 6: Final answer
   x = 18,289.05