Finding the Fourth Proportional to 12,144.30, 16,756.16 and 8,103.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144.30 : 16,756.16 = 8,103.18 : x
2. Step 2: Convert to fraction form
   12,144.30/16,756.16 = 8,103.18/x
3. Step 3: Cross multiply
   12,144.30x = 16,756.16 × 8,103.18
4. Step 4: Simplify right side
   12,144.30x = 135,778,180.59
5. Step 5: Solve for x
   x = 135,778,180.59/12,144.30
6. Step 6: Final answer
   x = 11,180.40