Finding the Fourth Proportional to 23,118.48, 31,903.41 and 12,508.29

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.48 : 31,903.41 = 12,508.29 : x
2. Step 2: Convert to fraction form
   23,118.48/31,903.41 = 12,508.29/x
3. Step 3: Cross multiply
   23,118.48x = 31,903.41 × 12,508.29
4. Step 4: Simplify right side
   23,118.48x = 399,057,104.27
5. Step 5: Solve for x
   x = 399,057,104.27/23,118.48
6. Step 6: Final answer
   x = 17,261.39