Finding the Fourth Proportional to 17,686.76, 24,411.19 and 10,138.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,686.76 : 24,411.19 = 10,138.15 : x
2. Step 2: Convert to fraction form
   17,686.76/24,411.19 = 10,138.15/x
3. Step 3: Cross multiply
   17,686.76x = 24,411.19 × 10,138.15
4. Step 4: Simplify right side
   17,686.76x = 247,484,305.90
5. Step 5: Solve for x
   x = 247,484,305.90/17,686.76
6. Step 6: Final answer
   x = 13,992.63