Finding the Fourth Proportional to 16,043.43, 22,131.04 and 9,328.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,043.43 : 22,131.04 = 9,328.31 : x
2. Step 2: Convert to fraction form
   16,043.43/22,131.04 = 9,328.31/x
3. Step 3: Cross multiply
   16,043.43x = 22,131.04 × 9,328.31
4. Step 4: Simplify right side
   16,043.43x = 206,445,280.39
5. Step 5: Solve for x
   x = 206,445,280.39/16,043.43
6. Step 6: Final answer
   x = 12,867.90