Finding the Fourth Proportional to 7,759.98, 10,708.72 and 4,223.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,759.98 : 10,708.72 = 4,223.25 : x
2. Step 2: Convert to fraction form
   7,759.98/10,708.72 = 4,223.25/x
3. Step 3: Cross multiply
   7,759.98x = 10,708.72 × 4,223.25
4. Step 4: Simplify right side
   7,759.98x = 45,225,601.74
5. Step 5: Solve for x
   x = 45,225,601.74/7,759.98
6. Step 6: Final answer
   x = 5,828.06