Hi,
If you want to add every url "/hosting-solutions/" in the front, then its simply possible with RewriteCond and Rewrite rule:
RewriteEngine On
RewriteRule ^$ /hosting-solutions [L]
But if the slash depends on resource you are directing, then its not possible via .htaccess and you should manually control that via PHP routing.
So i think i can help you with the project. Send a message and let's discuss further.
Thanks.
Giorgi,