To find the number of calories in 48.28 grams of Cereal X, we can use a proportion based on the known values. We know that 28.4 grams of Cereal X contains 110 calories. We can set up the proportion as follows: 28.4 grams is to 110 calories as 48.28 grams is to x calories. This can be expressed mathematically as: 28.4g/110cal = 48.28g/x cal. To solve for x, we cross-multiply: 28.4 * x = 110 * 48.28. Then, we divide both sides by 28.4 to isolate x: x = (110 * 48.28) / 28.4. Performing the calculation gives us x ≈ 187.33. Therefore, there are approximately 187.33 calories in 48.28 grams of Cereal X.