Finding the Fourth Proportional to 16,042.89, 22,138.72 and 8,969.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,042.89 : 22,138.72 = 8,969.30 : x
2. Step 2: Convert to fraction form
   16,042.89/22,138.72 = 8,969.30/x
3. Step 3: Cross multiply
   16,042.89x = 22,138.72 × 8,969.30
4. Step 4: Simplify right side
   16,042.89x = 198,568,771.20
5. Step 5: Solve for x
   x = 198,568,771.20/16,042.89
6. Step 6: Final answer
   x = 12,377.37