Finding the Fourth Proportional to 41,078.18, 56,687.91 and 22,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   41,078.18 : 56,687.91 = 22,215.31 : x
2. Step 2: Convert to fraction form
   41,078.18/56,687.91 = 22,215.31/x
3. Step 3: Cross multiply
   41,078.18x = 56,687.91 × 22,215.31
4. Step 4: Simplify right side
   41,078.18x = 1,259,339,493.90
5. Step 5: Solve for x
   x = 1,259,339,493.90/41,078.18
6. Step 6: Final answer
   x = 30,657.14