Finding the Fourth Proportional to 6,723.78, 9,279.27 and 3,740.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,723.78 : 9,279.27 = 3,740.15 : x
2. Step 2: Convert to fraction form
   6,723.78/9,279.27 = 3,740.15/x
3. Step 3: Cross multiply
   6,723.78x = 9,279.27 × 3,740.15
4. Step 4: Simplify right side
   6,723.78x = 34,705,796.59
5. Step 5: Solve for x
   x = 34,705,796.59/6,723.78
6. Step 6: Final answer
   x = 5,161.65