Finding the Fourth Proportional to 12,168.16, 16,790.81 and 8,983.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,168.16 : 16,790.81 = 8,983.15 : x
2. Step 2: Convert to fraction form
   12,168.16/16,790.81 = 8,983.15/x
3. Step 3: Cross multiply
   12,168.16x = 16,790.81 × 8,983.15
4. Step 4: Simplify right side
   12,168.16x = 150,834,277.96
5. Step 5: Solve for x
   x = 150,834,277.96/12,168.16
6. Step 6: Final answer
   x = 12,395.82