Finding the Fourth Proportional to 12,147.27, 16,653.98 and 11,925.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,147.27 : 16,653.98 = 11,925.87 : x
2. Step 2: Convert to fraction form
   12,147.27/16,653.98 = 11,925.87/x
3. Step 3: Cross multiply
   12,147.27x = 16,653.98 × 11,925.87
4. Step 4: Simplify right side
   12,147.27x = 198,613,140.83
5. Step 5: Solve for x
   x = 198,613,140.83/12,147.27
6. Step 6: Final answer
   x = 16,350.43