Finding the Fourth Proportional to 80,452.31, 111,045.72 and 50,219.42

Step by Step Solution

1. Step 1: Write the proportion equation
   80,452.31 : 111,045.72 = 50,219.42 : x
2. Step 2: Convert to fraction form
   80,452.31/111,045.72 = 50,219.42/x
3. Step 3: Cross multiply
   80,452.31x = 111,045.72 × 50,219.42
4. Step 4: Simplify right side
   80,452.31x = 5,576,652,229.38
5. Step 5: Solve for x
   x = 5,576,652,229.38/80,452.31
6. Step 6: Final answer
   x = 69,316.25