Finding the Fourth Proportional to 80,664.27, 111,286.94 and 48,821.55

Step by Step Solution

1. Step 1: Write the proportion equation
   80,664.27 : 111,286.94 = 48,821.55 : x
2. Step 2: Convert to fraction form
   80,664.27/111,286.94 = 48,821.55/x
3. Step 3: Cross multiply
   80,664.27x = 111,286.94 × 48,821.55
4. Step 4: Simplify right side
   80,664.27x = 5,433,200,905.56
5. Step 5: Solve for x
   x = 5,433,200,905.56/80,664.27
6. Step 6: Final answer
   x = 67,355.73