Finding the Fourth Proportional to 11,768.27, 17,651.87 and 3,977.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,768.27 : 17,651.87 = 3,977.15 : x
2. Step 2: Convert to fraction form
   11,768.27/17,651.87 = 3,977.15/x
3. Step 3: Cross multiply
   11,768.27x = 17,651.87 × 3,977.15
4. Step 4: Simplify right side
   11,768.27x = 70,204,114.88
5. Step 5: Solve for x
   x = 70,204,114.88/11,768.27
6. Step 6: Final answer
   x = 5,965.54