Finding the Fourth Proportional to 80,976.48, 111,744.72 and 50,778

Step by Step Solution

1. Step 1: Write the proportion equation
   80,976.48 : 111,744.72 = 50,778 : x
2. Step 2: Convert to fraction form
   80,976.48/111,744.72 = 50,778/x
3. Step 3: Cross multiply
   80,976.48x = 111,744.72 × 50,778
4. Step 4: Simplify right side
   80,976.48x = 5,674,173,392.16
5. Step 5: Solve for x
   x = 5,674,173,392.16/80,976.48
6. Step 6: Final answer
   x = 70,071.87