Finding the Fourth Proportional to 6,927.57, 9,559.69 and 3,943.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,927.57 : 9,559.69 = 3,943.40 : x
2. Step 2: Convert to fraction form
   6,927.57/9,559.69 = 3,943.40/x
3. Step 3: Cross multiply
   6,927.57x = 9,559.69 × 3,943.40
4. Step 4: Simplify right side
   6,927.57x = 37,697,623.89
5. Step 5: Solve for x
   x = 37,697,623.89/6,927.57
6. Step 6: Final answer
   x = 5,441.68