Finding the Fourth Proportional to 17,920.15, 24,730.12 and 9,854.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,920.15 : 24,730.12 = 9,854.15 : x
2. Step 2: Convert to fraction form
   17,920.15/24,730.12 = 9,854.15/x
3. Step 3: Cross multiply
   17,920.15x = 24,730.12 × 9,854.15
4. Step 4: Simplify right side
   17,920.15x = 243,694,262.73
5. Step 5: Solve for x
   x = 243,694,262.73/17,920.15
6. Step 6: Final answer
   x = 13,598.90