Finding the Fourth Proportional to 6,739.22, 9,300.15 and 3,907.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,739.22 : 9,300.15 = 3,907.15 : x
2. Step 2: Convert to fraction form
   6,739.22/9,300.15 = 3,907.15/x
3. Step 3: Cross multiply
   6,739.22x = 9,300.15 × 3,907.15
4. Step 4: Simplify right side
   6,739.22x = 36,337,061.54
5. Step 5: Solve for x
   x = 36,337,061.54/6,739.22
6. Step 6: Final answer
   x = 5,391.88