Finding the Fourth Proportional to 31,170.31, 43,014.71 and 17,023.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,170.31 : 43,014.71 = 17,023.15 : x
2. Step 2: Convert to fraction form
   31,170.31/43,014.71 = 17,023.15/x
3. Step 3: Cross multiply
   31,170.31x = 43,014.71 × 17,023.15
4. Step 4: Simplify right side
   31,170.31x = 732,245,860.54
5. Step 5: Solve for x
   x = 732,245,860.54/31,170.31
6. Step 6: Final answer
   x = 23,491.77