Finding the Fourth Proportional to 16,055.74, 22,155.18 and 9,342.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,055.74 : 22,155.18 = 9,342.72 : x
2. Step 2: Convert to fraction form
   16,055.74/22,155.18 = 9,342.72/x
3. Step 3: Cross multiply
   16,055.74x = 22,155.18 × 9,342.72
4. Step 4: Simplify right side
   16,055.74x = 206,989,643.29
5. Step 5: Solve for x
   x = 206,989,643.29/16,055.74
6. Step 6: Final answer
   x = 12,891.94