Finding the Fourth Proportional to 22,355.31, 30,849.72 and 12,283.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,355.31 : 30,849.72 = 12,283.72 : x
2. Step 2: Convert to fraction form
   22,355.31/30,849.72 = 12,283.72/x
3. Step 3: Cross multiply
   22,355.31x = 30,849.72 × 12,283.72
4. Step 4: Simplify right side
   22,355.31x = 378,949,322.56
5. Step 5: Solve for x
   x = 378,949,322.56/22,355.31
6. Step 6: Final answer
   x = 16,951.20