Finding the Fourth Proportional to 11,087.62, 16,639.89 and 4,074.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.62 : 16,639.89 = 4,074.28 : x
2. Step 2: Convert to fraction form
   11,087.62/16,639.89 = 4,074.28/x
3. Step 3: Cross multiply
   11,087.62x = 16,639.89 × 4,074.28
4. Step 4: Simplify right side
   11,087.62x = 67,795,571.03
5. Step 5: Solve for x
   x = 67,795,571.03/11,087.62
6. Step 6: Final answer
   x = 6,114.53