Finding the Fourth Proportional to 16,616.82, 24,897.56 and 11,929.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,616.82 : 24,897.56 = 11,929.82 : x
2. Step 2: Convert to fraction form
   16,616.82/24,897.56 = 11,929.82/x
3. Step 3: Cross multiply
   16,616.82x = 24,897.56 × 11,929.82
4. Step 4: Simplify right side
   16,616.82x = 297,023,225.10
5. Step 5: Solve for x
   x = 297,023,225.10/16,616.82
6. Step 6: Final answer
   x = 17,874.85