------
## 最终结论
```python
def find_kth_largest(nums, k):
    nums.sort()
    return nums[-k]

# Example usage:
print(find_kth_largest([3,2,1,5,6,4], 2))  # Output: 5
print(find_kth_largest([3,2,3,1,2,4,5,5,6], 4))  # Output: 4
```