Finding the Fourth Proportional to 17,680.16, 24,398.72 and 9,722.92

Step by Step Solution

1. Step 1: Write the proportion equation
   17,680.16 : 24,398.72 = 9,722.92 : x
2. Step 2: Convert to fraction form
   17,680.16/24,398.72 = 9,722.92/x
3. Step 3: Cross multiply
   17,680.16x = 24,398.72 × 9,722.92
4. Step 4: Simplify right side
   17,680.16x = 237,226,802.66
5. Step 5: Solve for x
   x = 237,226,802.66/17,680.16
6. Step 6: Final answer
   x = 13,417.68