Finding the Fourth Proportional to 22,351.72, 30,846.20 and 12,281.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,351.72 : 30,846.20 = 12,281.30 : x
2. Step 2: Convert to fraction form
   22,351.72/30,846.20 = 12,281.30/x
3. Step 3: Cross multiply
   22,351.72x = 30,846.20 × 12,281.30
4. Step 4: Simplify right side
   22,351.72x = 378,831,436.06
5. Step 5: Solve for x
   x = 378,831,436.06/22,351.72
6. Step 6: Final answer
   x = 16,948.65