Finding the Fourth Proportional to 16,042.46, 22,139.09 and 8,969.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,042.46 : 22,139.09 = 8,969.18 : x
2. Step 2: Convert to fraction form
   16,042.46/22,139.09 = 8,969.18/x
3. Step 3: Cross multiply
   16,042.46x = 22,139.09 × 8,969.18
4. Step 4: Simplify right side
   16,042.46x = 198,569,483.25
5. Step 5: Solve for x
   x = 198,569,483.25/16,042.46
6. Step 6: Final answer
   x = 12,377.75