Finding the Fourth Proportional to 80,531.98, 111,097.69 and 51,841.35

Step by Step Solution

1. Step 1: Write the proportion equation
   80,531.98 : 111,097.69 = 51,841.35 : x
2. Step 2: Convert to fraction form
   80,531.98/111,097.69 = 51,841.35/x
3. Step 3: Cross multiply
   80,531.98x = 111,097.69 × 51,841.35
4. Step 4: Simplify right side
   80,531.98x = 5,759,454,231.48
5. Step 5: Solve for x
   x = 5,759,454,231.48/80,531.98
6. Step 6: Final answer
   x = 71,517.60