Finding the Fourth Proportional to 31,456.25, 43,408.40 and 18,017.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,456.25 : 43,408.40 = 18,017.94 : x
2. Step 2: Convert to fraction form
   31,456.25/43,408.40 = 18,017.94/x
3. Step 3: Cross multiply
   31,456.25x = 43,408.40 × 18,017.94
4. Step 4: Simplify right side
   31,456.25x = 782,129,856.61
5. Step 5: Solve for x
   x = 782,129,856.61/31,456.25
6. Step 6: Final answer
   x = 24,864.06