Finding the Fourth Proportional to 12,256.08, 18,245.50 and 12,183.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.08 : 18,245.50 = 12,183.18 : x
2. Step 2: Convert to fraction form
   12,256.08/18,245.50 = 12,183.18/x
3. Step 3: Cross multiply
   12,256.08x = 18,245.50 × 12,183.18
4. Step 4: Simplify right side
   12,256.08x = 222,288,210.69
5. Step 5: Solve for x
   x = 222,288,210.69/12,256.08
6. Step 6: Final answer
   x = 18,136.97