12.3x4.8

59.04

To multiply 12.3 by 4.8, follow these steps:

1. Write down the numbers vertically, with the second number below the first:
```
12.3
x 4.8
```

2. Starting from the rightmost digit of the second number (4.8), multiply it by each digit of the first number (12.3) one by one, moving from right to left:
```
12.3
x 4.8
------------
9.84 (0.3 multiplied by 4)
48.60 (2 multiplied by 4)
------------
```

3. Align the two partial products one below the other:
```
12.3
x 4.8
------------
9.84
48.60
------------
```

4. Add the two partial products together:
```
12.3
x 4.8
------------
9.84
48.60
------------
59.04
```

Therefore, the multiplication of 12.3 and 4.8 is equal to 59.04.

To calculate the product of 12.3 and 4.8, you simply multiply the two numbers together.

So, the calculation would be:

12.3 x 4.8 = 59.04

Therefore, the product of 12.3 and 4.8 is equal to 59.04.