Finding the Fourth Proportional to 23,105.49, 31,885.65 and 12,495.19

Step by Step Solution

1. Step 1: Write the proportion equation
   23,105.49 : 31,885.65 = 12,495.19 : x
2. Step 2: Convert to fraction form
   23,105.49/31,885.65 = 12,495.19/x
3. Step 3: Cross multiply
   23,105.49x = 31,885.65 × 12,495.19
4. Step 4: Simplify right side
   23,105.49x = 398,417,255.02
5. Step 5: Solve for x
   x = 398,417,255.02/23,105.49
6. Step 6: Final answer
   x = 17,243.40