Finding the Fourth Proportional to 3,768.84, 5,196.48 and 3,561

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.84 : 5,196.48 = 3,561 : x
2. Step 2: Convert to fraction form
   3,768.84/5,196.48 = 3,561/x
3. Step 3: Cross multiply
   3,768.84x = 5,196.48 × 3,561
4. Step 4: Simplify right side
   3,768.84x = 18,504,665.28
5. Step 5: Solve for x
   x = 18,504,665.28/3,768.84
6. Step 6: Final answer
   x = 4,909.91