Finding the Fourth Proportional to 6,946.72, 9,585.87 and 3,921.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,946.72 : 9,585.87 = 3,921.67 : x
2. Step 2: Convert to fraction form
   6,946.72/9,585.87 = 3,921.67/x
3. Step 3: Cross multiply
   6,946.72x = 9,585.87 × 3,921.67
4. Step 4: Simplify right side
   6,946.72x = 37,592,618.80
5. Step 5: Solve for x
   x = 37,592,618.80/6,946.72
6. Step 6: Final answer
   x = 5,411.56