Finding the Fourth Proportional to 16,061.04, 22,165.92 and 8,989.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.04 : 22,165.92 = 8,989.20 : x
2. Step 2: Convert to fraction form
   16,061.04/22,165.92 = 8,989.20/x
3. Step 3: Cross multiply
   16,061.04x = 22,165.92 × 8,989.20
4. Step 4: Simplify right side
   16,061.04x = 199,253,888.06
5. Step 5: Solve for x
   x = 199,253,888.06/16,061.04
6. Step 6: Final answer
   x = 12,406.04