Finding the Fourth Proportional to 31,727.94, 43,789.96 and 18,296.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,727.94 : 43,789.96 = 18,296.78 : x
2. Step 2: Convert to fraction form
   31,727.94/43,789.96 = 18,296.78/x
3. Step 3: Cross multiply
   31,727.94x = 43,789.96 × 18,296.78
4. Step 4: Simplify right side
   31,727.94x = 801,215,264.33
5. Step 5: Solve for x
   x = 801,215,264.33/31,727.94
6. Step 6: Final answer
   x = 25,252.67