Finding the Fourth Proportional to 3,966.69, 5,474.75 and 3,768.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.69 : 5,474.75 = 3,768.45 : x
2. Step 2: Convert to fraction form
   3,966.69/5,474.75 = 3,768.45/x
3. Step 3: Cross multiply
   3,966.69x = 5,474.75 × 3,768.45
4. Step 4: Simplify right side
   3,966.69x = 20,631,321.64
5. Step 5: Solve for x
   x = 20,631,321.64/3,966.69
6. Step 6: Final answer
   x = 5,201.14