Finding the Fourth Proportional to 6,612.03, 9,123.84 and 3,960.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,612.03 : 9,123.84 = 3,960.09 : x
2. Step 2: Convert to fraction form
   6,612.03/9,123.84 = 3,960.09/x
3. Step 3: Cross multiply
   6,612.03x = 9,123.84 × 3,960.09
4. Step 4: Simplify right side
   6,612.03x = 36,131,227.55
5. Step 5: Solve for x
   x = 36,131,227.55/6,612.03
6. Step 6: Final answer
   x = 5,464.47