Finding the Fourth Proportional to 80,868.48, 111,608.37 and 49,037.28

Step by Step Solution

1. Step 1: Write the proportion equation
   80,868.48 : 111,608.37 = 49,037.28 : x
2. Step 2: Convert to fraction form
   80,868.48/111,608.37 = 49,037.28/x
3. Step 3: Cross multiply
   80,868.48x = 111,608.37 × 49,037.28
4. Step 4: Simplify right side
   80,868.48x = 5,472,970,890.03
5. Step 5: Solve for x
   x = 5,472,970,890.03/80,868.48
6. Step 6: Final answer
   x = 67,677.43