Finding the Fourth Proportional to 21,882.52, 30,198.05 and 12,451.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,882.52 : 30,198.05 = 12,451.69 : x
2. Step 2: Convert to fraction form
   21,882.52/30,198.05 = 12,451.69/x
3. Step 3: Cross multiply
   21,882.52x = 30,198.05 × 12,451.69
4. Step 4: Simplify right side
   21,882.52x = 376,016,757.20
5. Step 5: Solve for x
   x = 376,016,757.20/21,882.52
6. Step 6: Final answer
   x = 17,183.43