Finding the Fourth Proportional to 6,747.50, 9,311.28 and 3,763.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,747.50 : 9,311.28 = 3,763.31 : x
2. Step 2: Convert to fraction form
   6,747.50/9,311.28 = 3,763.31/x
3. Step 3: Cross multiply
   6,747.50x = 9,311.28 × 3,763.31
4. Step 4: Simplify right side
   6,747.50x = 35,041,233.14
5. Step 5: Solve for x
   x = 35,041,233.14/6,747.50
6. Step 6: Final answer
   x = 5,193.22