Finding the Fourth Proportional to 13,350.54, 18,422.78 and 7,382.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,350.54 : 18,422.78 = 7,382.28 : x
2. Step 2: Convert to fraction form
   13,350.54/18,422.78 = 7,382.28/x
3. Step 3: Cross multiply
   13,350.54x = 18,422.78 × 7,382.28
4. Step 4: Simplify right side
   13,350.54x = 136,002,083.43
5. Step 5: Solve for x
   x = 136,002,083.43/13,350.54
6. Step 6: Final answer
   x = 10,187.01