Finding the Fourth Proportional to 31,581.49, 43,581.31 and 17,434.03

Step by Step Solution

1. Step 1: Write the proportion equation
   31,581.49 : 43,581.31 = 17,434.03 : x
2. Step 2: Convert to fraction form
   31,581.49/43,581.31 = 17,434.03/x
3. Step 3: Cross multiply
   31,581.49x = 43,581.31 × 17,434.03
4. Step 4: Simplify right side
   31,581.49x = 759,797,560.90
5. Step 5: Solve for x
   x = 759,797,560.90/31,581.49
6. Step 6: Final answer
   x = 24,058.32