Finding the Fourth Proportional to 31,448.46, 43,399.16 and 17,108.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,448.46 : 43,399.16 = 17,108.42 : x
2. Step 2: Convert to fraction form
   31,448.46/43,399.16 = 17,108.42/x
3. Step 3: Cross multiply
   31,448.46x = 43,399.16 × 17,108.42
4. Step 4: Simplify right side
   31,448.46x = 742,491,062.67
5. Step 5: Solve for x
   x = 742,491,062.67/31,448.46
6. Step 6: Final answer
   x = 23,609.78