Finding the Fourth Proportional to 23,152.86, 31,950.72 and 12,542.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,152.86 : 31,950.72 = 12,542.31 : x
2. Step 2: Convert to fraction form
   23,152.86/31,950.72 = 12,542.31/x
3. Step 3: Cross multiply
   23,152.86x = 31,950.72 × 12,542.31
4. Step 4: Simplify right side
   23,152.86x = 400,735,834.96
5. Step 5: Solve for x
   x = 400,735,834.96/23,152.86
6. Step 6: Final answer
   x = 17,308.26