Finding the Fourth Proportional to 80,538, 111,105.96 and 51,847.36

Step by Step Solution

1. Step 1: Write the proportion equation
   80,538 : 111,105.96 = 51,847.36 : x
2. Step 2: Convert to fraction form
   80,538/111,105.96 = 51,847.36/x
3. Step 3: Cross multiply
   80,538x = 111,105.96 × 51,847.36
4. Step 4: Simplify right side
   80,538x = 5,760,550,706.27
5. Step 5: Solve for x
   x = 5,760,550,706.27/80,538
6. Step 6: Final answer
   x = 71,525.87