Finding the Fourth Proportional to 31,167.15, 43,010.70 and 17,019.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,167.15 : 43,010.70 = 17,019.96 : x
2. Step 2: Convert to fraction form
   31,167.15/43,010.70 = 17,019.96/x
3. Step 3: Cross multiply
   31,167.15x = 43,010.70 × 17,019.96
4. Step 4: Simplify right side
   31,167.15x = 732,040,393.57
5. Step 5: Solve for x
   x = 732,040,393.57/31,167.15
6. Step 6: Final answer
   x = 23,487.56