Finding the Fourth Proportional to 16,064.76, 22,168.49 and 8,989.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,064.76 : 22,168.49 = 8,989.81 : x
2. Step 2: Convert to fraction form
   16,064.76/22,168.49 = 8,989.81/x
3. Step 3: Cross multiply
   16,064.76x = 22,168.49 × 8,989.81
4. Step 4: Simplify right side
   16,064.76x = 199,290,535.56
5. Step 5: Solve for x
   x = 199,290,535.56/16,064.76
6. Step 6: Final answer
   x = 12,405.45