Finding the Fourth Proportional to 31,260.43, 43,139.43 and 17,113.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,260.43 : 43,139.43 = 17,113.33 : x
2. Step 2: Convert to fraction form
   31,260.43/43,139.43 = 17,113.33/x
3. Step 3: Cross multiply
   31,260.43x = 43,139.43 × 17,113.33
4. Step 4: Simplify right side
   31,260.43x = 738,259,301.60
5. Step 5: Solve for x
   x = 738,259,301.60/31,260.43
6. Step 6: Final answer
   x = 23,616.42