Finding the Fourth Proportional to 22,478.88, 31,025.04 and 12,924.36

Step by Step Solution

1. Step 1: Write the proportion equation
   22,478.88 : 31,025.04 = 12,924.36 : x
2. Step 2: Convert to fraction form
   22,478.88/31,025.04 = 12,924.36/x
3. Step 3: Cross multiply
   22,478.88x = 31,025.04 × 12,924.36
4. Step 4: Simplify right side
   22,478.88x = 400,978,785.97
5. Step 5: Solve for x
   x = 400,978,785.97/22,478.88
6. Step 6: Final answer
   x = 17,838.02