Finding the Fourth Proportional to 80,928.56, 111,695.99 and 50,740.05

Step by Step Solution

1. Step 1: Write the proportion equation
   80,928.56 : 111,695.99 = 50,740.05 : x
2. Step 2: Convert to fraction form
   80,928.56/111,695.99 = 50,740.05/x
3. Step 3: Cross multiply
   80,928.56x = 111,695.99 × 50,740.05
4. Step 4: Simplify right side
   80,928.56x = 5,667,459,863.70
5. Step 5: Solve for x
   x = 5,667,459,863.70/80,928.56
6. Step 6: Final answer
   x = 70,030.41