Finding the Fourth Proportional to 80,731.16, 111,411.66 and 50,506.82

Step by Step Solution

1. Step 1: Write the proportion equation
   80,731.16 : 111,411.66 = 50,506.82 : x
2. Step 2: Convert to fraction form
   80,731.16/111,411.66 = 50,506.82/x
3. Step 3: Cross multiply
   80,731.16x = 111,411.66 × 50,506.82
4. Step 4: Simplify right side
   80,731.16x = 5,627,048,657.52
5. Step 5: Solve for x
   x = 5,627,048,657.52/80,731.16
6. Step 6: Final answer
   x = 69,701.08