Finding the Fourth Proportional to 16,065.30, 22,168.11 and 8,989.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,065.30 : 22,168.11 = 8,989.98 : x
2. Step 2: Convert to fraction form
   16,065.30/22,168.11 = 8,989.98/x
3. Step 3: Cross multiply
   16,065.30x = 22,168.11 × 8,989.98
4. Step 4: Simplify right side
   16,065.30x = 199,290,865.54
5. Step 5: Solve for x
   x = 199,290,865.54/16,065.30
6. Step 6: Final answer
   x = 12,405.05