Finding the Fourth Proportional to 80,984.66, 111,724.38 and 50,749.40

Step by Step Solution

1. Step 1: Write the proportion equation
   80,984.66 : 111,724.38 = 50,749.40 : x
2. Step 2: Convert to fraction form
   80,984.66/111,724.38 = 50,749.40/x
3. Step 3: Cross multiply
   80,984.66x = 111,724.38 × 50,749.40
4. Step 4: Simplify right side
   80,984.66x = 5,669,945,250.37
5. Step 5: Solve for x
   x = 5,669,945,250.37/80,984.66
6. Step 6: Final answer
   x = 70,012.58