Finding the Fourth Proportional to 23,151.23, 31,948.76 and 12,540.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,151.23 : 31,948.76 = 12,540.86 : x
2. Step 2: Convert to fraction form
   23,151.23/31,948.76 = 12,540.86/x
3. Step 3: Cross multiply
   23,151.23x = 31,948.76 × 12,540.86
4. Step 4: Simplify right side
   23,151.23x = 400,664,863.63
5. Step 5: Solve for x
   x = 400,664,863.63/23,151.23
6. Step 6: Final answer
   x = 17,306.42