Finding the Fourth Proportional to 7,771.50, 10,724.67 and 4,234.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,771.50 : 10,724.67 = 4,234.72 : x
2. Step 2: Convert to fraction form
   7,771.50/10,724.67 = 4,234.72/x
3. Step 3: Cross multiply
   7,771.50x = 10,724.67 × 4,234.72
4. Step 4: Simplify right side
   7,771.50x = 45,415,920.92
5. Step 5: Solve for x
   x = 45,415,920.92/7,771.50
6. Step 6: Final answer
   x = 5,843.91