sorting a table based on first column which contains b

Hi all,

I have the use case where I need to sort a table based on it's first column. 
This column can contain only numbers but also a mix of words and numbers. See
example below.

<table>
  <tr>
    <td>5</td>
  </tr>
  <tr>
    <td>3</td>
  </tr>
  <tr>
    <td>Banana</td>
  </tr>
  <tr>
    <td>Apple</td>
  </tr>
</table>


I want following output (first sorted numerical  and then alphabetically)

<table>
  <tr>
    <td>3</td>
  </tr>
  <tr>
    <td>5</td>
  </tr>
  <tr>
    <td>Apple</td>
  </tr>
  <tr>
    <td>Banana</td>
  </tr>
</table>

How can I accomplish this with xslt?

Kind regards,
Robby Pelssers