Finding the Fourth Proportional to 11,664.41, 17,485.47 and 3,867.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,664.41 : 17,485.47 = 3,867.75 : x
2. Step 2: Convert to fraction form
   11,664.41/17,485.47 = 3,867.75/x
3. Step 3: Cross multiply
   11,664.41x = 17,485.47 × 3,867.75
4. Step 4: Simplify right side
   11,664.41x = 67,629,426.59
5. Step 5: Solve for x
   x = 67,629,426.59/11,664.41
6. Step 6: Final answer
   x = 5,797.93