Finding the Fourth Proportional to 16,676.16, 25,111.38 and 12,324

Step by Step Solution

1. Step 1: Write the proportion equation
   16,676.16 : 25,111.38 = 12,324 : x
2. Step 2: Convert to fraction form
   16,676.16/25,111.38 = 12,324/x
3. Step 3: Cross multiply
   16,676.16x = 25,111.38 × 12,324
4. Step 4: Simplify right side
   16,676.16x = 309,472,647.12
5. Step 5: Solve for x
   x = 309,472,647.12/16,676.16
6. Step 6: Final answer
   x = 18,557.79