Finding the Fourth Proportional to 12,735.34, 19,105.10 and 3,968.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.34 : 19,105.10 = 3,968.48 : x
2. Step 2: Convert to fraction form
   12,735.34/19,105.10 = 3,968.48/x
3. Step 3: Cross multiply
   12,735.34x = 19,105.10 × 3,968.48
4. Step 4: Simplify right side
   12,735.34x = 75,818,187.41
5. Step 5: Solve for x
   x = 75,818,187.41/12,735.34
6. Step 6: Final answer
   x = 5,953.37