Finding the Fourth Proportional to 22,725, 31,360.50 and 13,295.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,725 : 31,360.50 = 13,295.39 : x
2. Step 2: Convert to fraction form
   22,725/31,360.50 = 13,295.39/x
3. Step 3: Cross multiply
   22,725x = 31,360.50 × 13,295.39
4. Step 4: Simplify right side
   22,725x = 416,949,921.29
5. Step 5: Solve for x
   x = 416,949,921.29/22,725
6. Step 6: Final answer
   x = 18,347.63