Finding the Fourth Proportional to 22,391.43, 30,899.53 and 12,182.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,391.43 : 30,899.53 = 12,182.15 : x
2. Step 2: Convert to fraction form
   22,391.43/30,899.53 = 12,182.15/x
3. Step 3: Cross multiply
   22,391.43x = 30,899.53 × 12,182.15
4. Step 4: Simplify right side
   22,391.43x = 376,422,493.98
5. Step 5: Solve for x
   x = 376,422,493.98/22,391.43
6. Step 6: Final answer
   x = 16,811.01