Finding the Fourth Proportional to 12,382.55, 18,552.25 and 10,315.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.55 : 18,552.25 = 10,315.83 : x
2. Step 2: Convert to fraction form
   12,382.55/18,552.25 = 10,315.83/x
3. Step 3: Cross multiply
   12,382.55x = 18,552.25 × 10,315.83
4. Step 4: Simplify right side
   12,382.55x = 191,381,805.54
5. Step 5: Solve for x
   x = 191,381,805.54/12,382.55
6. Step 6: Final answer
   x = 15,455.77