Finding the Fourth Proportional to 12,735.84, 19,105.85 and 3,968.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.84 : 19,105.85 = 3,968.98 : x
2. Step 2: Convert to fraction form
   12,735.84/19,105.85 = 3,968.98/x
3. Step 3: Cross multiply
   12,735.84x = 19,105.85 × 3,968.98
4. Step 4: Simplify right side
   12,735.84x = 75,830,736.53
5. Step 5: Solve for x
   x = 75,830,736.53/12,735.84
6. Step 6: Final answer
   x = 5,954.12