Finding the Fourth Proportional to 23,119.16, 31,904.42 and 12,508.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,119.16 : 31,904.42 = 12,508.83 : x
2. Step 2: Convert to fraction form
   23,119.16/31,904.42 = 12,508.83/x
3. Step 3: Cross multiply
   23,119.16x = 31,904.42 × 12,508.83
4. Step 4: Simplify right side
   23,119.16x = 399,086,903.48
5. Step 5: Solve for x
   x = 399,086,903.48/23,119.16
6. Step 6: Final answer
   x = 17,262.18