Finding the Fourth Proportional to 12,382.43, 18,552.06 and 10,315.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.43 : 18,552.06 = 10,315.71 : x
2. Step 2: Convert to fraction form
   12,382.43/18,552.06 = 10,315.71/x
3. Step 3: Cross multiply
   12,382.43x = 18,552.06 × 10,315.71
4. Step 4: Simplify right side
   12,382.43x = 191,377,670.86
5. Step 5: Solve for x
   x = 191,377,670.86/12,382.43
6. Step 6: Final answer
   x = 15,455.59