Finding the Fourth Proportional to 17,680.52, 24,399.80 and 9,722.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,680.52 : 24,399.80 = 9,722.57 : x
2. Step 2: Convert to fraction form
   17,680.52/24,399.80 = 9,722.57/x
3. Step 3: Cross multiply
   17,680.52x = 24,399.80 × 9,722.57
4. Step 4: Simplify right side
   17,680.52x = 237,228,763.49
5. Step 5: Solve for x
   x = 237,228,763.49/17,680.52
6. Step 6: Final answer
   x = 13,417.52