Finding the Fourth Proportional to 7,291.85, 10,928.59 and 3,960.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,291.85 : 10,928.59 = 3,960.05 : x
2. Step 2: Convert to fraction form
   7,291.85/10,928.59 = 3,960.05/x
3. Step 3: Cross multiply
   7,291.85x = 10,928.59 × 3,960.05
4. Step 4: Simplify right side
   7,291.85x = 43,277,698.29
5. Step 5: Solve for x
   x = 43,277,698.29/7,291.85
6. Step 6: Final answer
   x = 5,935.08