Finding the Fourth Proportional to 31,729.36, 43,781.52 and 17,581.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,729.36 : 43,781.52 = 17,581.72 : x
2. Step 2: Convert to fraction form
   31,729.36/43,781.52 = 17,581.72/x
3. Step 3: Cross multiply
   31,729.36x = 43,781.52 × 17,581.72
4. Step 4: Simplify right side
   31,729.36x = 769,754,425.81
5. Step 5: Solve for x
   x = 769,754,425.81/31,729.36
6. Step 6: Final answer
   x = 24,260.00