Finding the Fourth Proportional to 71,589, 98,794.74 and 39,759.24

Step by Step Solution

1. Step 1: Write the proportion equation
   71,589 : 98,794.74 = 39,759.24 : x
2. Step 2: Convert to fraction form
   71,589/98,794.74 = 39,759.24/x
3. Step 3: Cross multiply
   71,589x = 98,794.74 × 39,759.24
4. Step 4: Simplify right side
   71,589x = 3,928,003,778.40
5. Step 5: Solve for x
   x = 3,928,003,778.40/71,589
6. Step 6: Final answer
   x = 54,868.82