Finding the Fourth Proportional to 80,412.66, 110,896.82 and 50,200.78

Step by Step Solution

1. Step 1: Write the proportion equation
   80,412.66 : 110,896.82 = 50,200.78 : x
2. Step 2: Convert to fraction form
   80,412.66/110,896.82 = 50,200.78/x
3. Step 3: Cross multiply
   80,412.66x = 110,896.82 × 50,200.78
4. Step 4: Simplify right side
   80,412.66x = 5,567,106,863.52
5. Step 5: Solve for x
   x = 5,567,106,863.52/80,412.66
6. Step 6: Final answer
   x = 69,231.72