Finding the Fourth Proportional to 22,298.71, 30,772.20 and 12,227.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,298.71 : 30,772.20 = 12,227.31 : x
2. Step 2: Convert to fraction form
   22,298.71/30,772.20 = 12,227.31/x
3. Step 3: Cross multiply
   22,298.71x = 30,772.20 × 12,227.31
4. Step 4: Simplify right side
   22,298.71x = 376,261,361.18
5. Step 5: Solve for x
   x = 376,261,361.18/22,298.71
6. Step 6: Final answer
   x = 16,873.68