Finding the Fourth Proportional to 11,684.35, 17,515.59 and 4,286.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,684.35 : 17,515.59 = 4,286.82 : x
2. Step 2: Convert to fraction form
   11,684.35/17,515.59 = 4,286.82/x
3. Step 3: Cross multiply
   11,684.35x = 17,515.59 × 4,286.82
4. Step 4: Simplify right side
   11,684.35x = 75,086,255.25
5. Step 5: Solve for x
   x = 75,086,255.25/11,684.35
6. Step 6: Final answer
   x = 6,426.22