Finding the Fourth Proportional to 16,042.57, 22,139.25 and 8,968.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,042.57 : 22,139.25 = 8,968.96 : x
2. Step 2: Convert to fraction form
   16,042.57/22,139.25 = 8,968.96/x
3. Step 3: Cross multiply
   16,042.57x = 22,139.25 × 8,968.96
4. Step 4: Simplify right side
   16,042.57x = 198,566,047.68
5. Step 5: Solve for x
   x = 198,566,047.68/16,042.57
6. Step 6: Final answer
   x = 12,377.45