Finding the Fourth Proportional to 22,891.56, 31,591.52 and 12,819.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,891.56 : 31,591.52 = 12,819.41 : x
2. Step 2: Convert to fraction form
   22,891.56/31,591.52 = 12,819.41/x
3. Step 3: Cross multiply
   22,891.56x = 31,591.52 × 12,819.41
4. Step 4: Simplify right side
   22,891.56x = 404,984,647.40
5. Step 5: Solve for x
   x = 404,984,647.40/22,891.56
6. Step 6: Final answer
   x = 17,691.44