Finding the Fourth Proportional to 22,480.78, 31,025.15 and 13,050.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,480.78 : 31,025.15 = 13,050.78 : x
2. Step 2: Convert to fraction form
   22,480.78/31,025.15 = 13,050.78/x
3. Step 3: Cross multiply
   22,480.78x = 31,025.15 × 13,050.78
4. Step 4: Simplify right side
   22,480.78x = 404,902,407.12
5. Step 5: Solve for x
   x = 404,902,407.12/22,480.78
6. Step 6: Final answer
   x = 18,011.05