Finding the Fourth Proportional to 8,311.98, 12,470.06 and 2,765.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,311.98 : 12,470.06 = 2,765.34 : x
2. Step 2: Convert to fraction form
   8,311.98/12,470.06 = 2,765.34/x
3. Step 3: Cross multiply
   8,311.98x = 12,470.06 × 2,765.34
4. Step 4: Simplify right side
   8,311.98x = 34,483,955.72
5. Step 5: Solve for x
   x = 34,483,955.72/8,311.98
6. Step 6: Final answer
   x = 4,148.71