First, we'll find the total weight of the 24 oranges in the box:
24 oranges * 95 grams/orange = 2,280 grams
Next, we'll find the total weight of all the oranges:
24 oranges + 28 oranges = 52 oranges
We know that the mean weight of all the oranges combined is 112 grams, so we can use this information to find the total weight of all the oranges:
52 oranges * 112 grams/orange = 5,824 grams
Now, we can find the total weight of the 28 oranges in the bag by subtracting the weight of the 24 oranges in the box from the total weight of all the oranges:
5,824 grams - 2,280 grams = 3,544 grams
Finally, we can find the mean weight of the 28 oranges in the bag:
3,544 grams / 28 oranges = 126.57 grams
So, the mean weight of the 28 oranges in the bag is 126.57 grams.