Finding the Fourth Proportional to 31,171.42, 43,015.42 and 17,023.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,171.42 : 43,015.42 = 17,023.96 : x
2. Step 2: Convert to fraction form
   31,171.42/43,015.42 = 17,023.96/x
3. Step 3: Cross multiply
   31,171.42x = 43,015.42 × 17,023.96
4. Step 4: Simplify right side
   31,171.42x = 732,292,789.46
5. Step 5: Solve for x
   x = 732,292,789.46/31,171.42
6. Step 6: Final answer
   x = 23,492.44