Finding the Fourth Proportional to 16,031.80, 22,123.79 and 8,958.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,031.80 : 22,123.79 = 8,958.16 : x
2. Step 2: Convert to fraction form
   16,031.80/22,123.79 = 8,958.16/x
3. Step 3: Cross multiply
   16,031.80x = 22,123.79 × 8,958.16
4. Step 4: Simplify right side
   16,031.80x = 198,188,340.01
5. Step 5: Solve for x
   x = 198,188,340.01/16,031.80
6. Step 6: Final answer
   x = 12,362.21