Finding the Fourth Proportional to 12,735.42, 19,105.38 and 3,968.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.42 : 19,105.38 = 3,968.16 : x
2. Step 2: Convert to fraction form
   12,735.42/19,105.38 = 3,968.16/x
3. Step 3: Cross multiply
   12,735.42x = 19,105.38 × 3,968.16
4. Step 4: Simplify right side
   12,735.42x = 75,813,204.70
5. Step 5: Solve for x
   x = 75,813,204.70/12,735.42
6. Step 6: Final answer
   x = 5,952.94