Finding the Fourth Proportional to 23,124.39, 31,912.57 and 13,053.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,124.39 : 31,912.57 = 13,053.18 : x
2. Step 2: Convert to fraction form
   23,124.39/31,912.57 = 13,053.18/x
3. Step 3: Cross multiply
   23,124.39x = 31,912.57 × 13,053.18
4. Step 4: Simplify right side
   23,124.39x = 416,560,583.04
5. Step 5: Solve for x
   x = 416,560,583.04/23,124.39
6. Step 6: Final answer
   x = 18,013.91