Finding the Fourth Proportional to 80,664.03, 111,286.59 and 48,821.31

Step by Step Solution

1. Step 1: Write the proportion equation
   80,664.03 : 111,286.59 = 48,821.31 : x
2. Step 2: Convert to fraction form
   80,664.03/111,286.59 = 48,821.31/x
3. Step 3: Cross multiply
   80,664.03x = 111,286.59 × 48,821.31
4. Step 4: Simplify right side
   80,664.03x = 5,433,157,109.23
5. Step 5: Solve for x
   x = 5,433,157,109.23/80,664.03
6. Step 6: Final answer
   x = 67,355.39