Finding the Fourth Proportional to 22,555.26, 31,124.16 and 13,478.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,555.26 : 31,124.16 = 13,478.82 : x
2. Step 2: Convert to fraction form
   22,555.26/31,124.16 = 13,478.82/x
3. Step 3: Cross multiply
   22,555.26x = 31,124.16 × 13,478.82
4. Step 4: Simplify right side
   22,555.26x = 419,517,016.46
5. Step 5: Solve for x
   x = 419,517,016.46/22,555.26
6. Step 6: Final answer
   x = 18,599.52