Finding the Fourth Proportional to 11,964.05, 17,945.77 and 3,643.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,964.05 : 17,945.77 = 3,643.73 : x
2. Step 2: Convert to fraction form
   11,964.05/17,945.77 = 3,643.73/x
3. Step 3: Cross multiply
   11,964.05x = 17,945.77 × 3,643.73
4. Step 4: Simplify right side
   11,964.05x = 65,389,540.52
5. Step 5: Solve for x
   x = 65,389,540.52/11,964.05
6. Step 6: Final answer
   x = 5,465.50