Finding the Fourth Proportional to 80,506.86, 111,099.87 and 50,309.73

Step by Step Solution

1. Step 1: Write the proportion equation
   80,506.86 : 111,099.87 = 50,309.73 : x
2. Step 2: Convert to fraction form
   80,506.86/111,099.87 = 50,309.73/x
3. Step 3: Cross multiply
   80,506.86x = 111,099.87 × 50,309.73
4. Step 4: Simplify right side
   80,506.86x = 5,589,404,462.74
5. Step 5: Solve for x
   x = 5,589,404,462.74/80,506.86
6. Step 6: Final answer
   x = 69,427.68