Finding the Fourth Proportional to 17,456.54, 24,089.16 and 9,902.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,456.54 : 24,089.16 = 9,902.70 : x
2. Step 2: Convert to fraction form
   17,456.54/24,089.16 = 9,902.70/x
3. Step 3: Cross multiply
   17,456.54x = 24,089.16 × 9,902.70
4. Step 4: Simplify right side
   17,456.54x = 238,547,724.73
5. Step 5: Solve for x
   x = 238,547,724.73/17,456.54
6. Step 6: Final answer
   x = 13,665.24