Finding the Fourth Proportional to 31,315.41, 43,214.72 and 17,168.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,315.41 : 43,214.72 = 17,168.31 : x
2. Step 2: Convert to fraction form
   31,315.41/43,214.72 = 17,168.31/x
3. Step 3: Cross multiply
   31,315.41x = 43,214.72 × 17,168.31
4. Step 4: Simplify right side
   31,315.41x = 741,923,623.68
5. Step 5: Solve for x
   x = 741,923,623.68/31,315.41
6. Step 6: Final answer
   x = 23,691.97