Finding the Fourth Proportional to 31,728.02, 43,786.24 and 17,580.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,728.02 : 43,786.24 = 17,580.92 : x
2. Step 2: Convert to fraction form
   31,728.02/43,786.24 = 17,580.92/x
3. Step 3: Cross multiply
   31,728.02x = 43,786.24 × 17,580.92
4. Step 4: Simplify right side
   31,728.02x = 769,802,382.54
5. Step 5: Solve for x
   x = 769,802,382.54/31,728.02
6. Step 6: Final answer
   x = 24,262.54