Finding the Fourth Proportional to 16,055.28, 22,154.31 and 8,981.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,055.28 : 22,154.31 = 8,981.55 : x
2. Step 2: Convert to fraction form
   16,055.28/22,154.31 = 8,981.55/x
3. Step 3: Cross multiply
   16,055.28x = 22,154.31 × 8,981.55
4. Step 4: Simplify right side
   16,055.28x = 198,980,042.98
5. Step 5: Solve for x
   x = 198,980,042.98/16,055.28
6. Step 6: Final answer
   x = 12,393.43