Finding the Fourth Proportional to 6,631.52, 9,940.56 and 4,168.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,631.52 : 9,940.56 = 4,168.08 : x
2. Step 2: Convert to fraction form
   6,631.52/9,940.56 = 4,168.08/x
3. Step 3: Cross multiply
   6,631.52x = 9,940.56 × 4,168.08
4. Step 4: Simplify right side
   6,631.52x = 41,433,049.32
5. Step 5: Solve for x
   x = 41,433,049.32/6,631.52
6. Step 6: Final answer
   x = 6,247.90