Download a trial of AppDelete. Open the app.
Drag the Reader 9 app to the window and it will find ALL associated files. Delete them, and empty the trash.
You should be good to go.
That is a great idea, the problem I have is that I cannot find an App that is 9.4.5, I can just find one that says reader.
Click it.(just once)
In the "Info" window it will tell you what version.
If it's 9, run it through the Appdelete.
Normally Adobe Reader 9 is present in "/Applications/Adobe Reader 9/" folder as Adobe Reader.app, whereas Adobe Reader X application installs directly in /Applications folder. So Adobe Reader X will be at /Applications/Adobe Reader.app