Finding the Fourth Proportional to 23,105.52, 31,885.62 and 12,495.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,105.52 : 31,885.62 = 12,495.15 : x
2. Step 2: Convert to fraction form
   23,105.52/31,885.62 = 12,495.15/x
3. Step 3: Cross multiply
   23,105.52x = 31,885.62 × 12,495.15
4. Step 4: Simplify right side
   23,105.52x = 398,415,604.74
5. Step 5: Solve for x
   x = 398,415,604.74/23,105.52
6. Step 6: Final answer
   x = 17,243.31