Finding the Fourth Proportional to 6,744.78, 9,307.30 and 3,760.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,744.78 : 9,307.30 = 3,760.78 : x
2. Step 2: Convert to fraction form
   6,744.78/9,307.30 = 3,760.78/x
3. Step 3: Cross multiply
   6,744.78x = 9,307.30 × 3,760.78
4. Step 4: Simplify right side
   6,744.78x = 35,002,707.69
5. Step 5: Solve for x
   x = 35,002,707.69/6,744.78
6. Step 6: Final answer
   x = 5,189.60