Finding the Fourth Proportional to 80,865.53, 111,664.59 and 50,702.69

Step by Step Solution

1. Step 1: Write the proportion equation
   80,865.53 : 111,664.59 = 50,702.69 : x
2. Step 2: Convert to fraction form
   80,865.53/111,664.59 = 50,702.69/x
3. Step 3: Cross multiply
   80,865.53x = 111,664.59 × 50,702.69
4. Step 4: Simplify right side
   80,865.53x = 5,661,694,532.42
5. Step 5: Solve for x
   x = 5,661,694,532.42/80,865.53
6. Step 6: Final answer
   x = 70,013.70