Finding the Fourth Proportional to 40,216.57, 55,499.88 and 22,311.87

Step by Step Solution

1. Step 1: Write the proportion equation
   40,216.57 : 55,499.88 = 22,311.87 : x
2. Step 2: Convert to fraction form
   40,216.57/55,499.88 = 22,311.87/x
3. Step 3: Cross multiply
   40,216.57x = 55,499.88 × 22,311.87
4. Step 4: Simplify right side
   40,216.57x = 1,238,306,295.31
5. Step 5: Solve for x
   x = 1,238,306,295.31/40,216.57
6. Step 6: Final answer
   x = 30,790.95