Finding the Fourth Proportional to 22,297.89, 30,771.39 and 12,226.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,297.89 : 30,771.39 = 12,226.31 : x
2. Step 2: Convert to fraction form
   22,297.89/30,771.39 = 12,226.31/x
3. Step 3: Cross multiply
   22,297.89x = 30,771.39 × 12,226.31
4. Step 4: Simplify right side
   22,297.89x = 376,220,491.88
5. Step 5: Solve for x
   x = 376,220,491.88/22,297.89
6. Step 6: Final answer
   x = 16,872.47