Finding the Fourth Proportional to 23,171.24, 31,976.32 and 12,560.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,171.24 : 31,976.32 = 12,560.86 : x
2. Step 2: Convert to fraction form
   23,171.24/31,976.32 = 12,560.86/x
3. Step 3: Cross multiply
   23,171.24x = 31,976.32 × 12,560.86
4. Step 4: Simplify right side
   23,171.24x = 401,650,078.84
5. Step 5: Solve for x
   x = 401,650,078.84/23,171.24
6. Step 6: Final answer
   x = 17,333.99