Finding the Fourth Proportional to 12,382.46, 17,067.81 and 10,140.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.46 : 17,067.81 = 10,140.38 : x
2. Step 2: Convert to fraction form
   12,382.46/17,067.81 = 10,140.38/x
3. Step 3: Cross multiply
   12,382.46x = 17,067.81 × 10,140.38
4. Step 4: Simplify right side
   12,382.46x = 173,073,993.83
5. Step 5: Solve for x
   x = 173,073,993.83/12,382.46
6. Step 6: Final answer
   x = 13,977.36