Finding the Fourth Proportional to 6,945.72, 9,584.49 and 3,920.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,945.72 : 9,584.49 = 3,920.67 : x
2. Step 2: Convert to fraction form
   6,945.72/9,584.49 = 3,920.67/x
3. Step 3: Cross multiply
   6,945.72x = 9,584.49 × 3,920.67
4. Step 4: Simplify right side
   6,945.72x = 37,577,643.65
5. Step 5: Solve for x
   x = 37,577,643.65/6,945.72
6. Step 6: Final answer
   x = 5,410.19