Add all dlls and then add the following packages using the NuGet:
Xamarin Support Library v7 AppCompat (required by the following assemblies: Chart, Feedback, Input, List & Primitives)
Xamarin Support Library v7 RecyclerView (required by the List assembly)
Xamarin Support Library v8 RenderScript (required by the Primitives assembly)
Or
The Primitives library references the Common library
The Data library references the Common library
The Input library references the Common library and v7 AppCompat
The Chart library references the Primitives, the Common libraries and v7 AppCompat
The List library references the Common, Data, v7 AppCompat and v7 RecyclerView libraries
The Feedback library references the Common librariy and v7 AppCompat
References :
http://docs.telerik.com/devtools/android/download-and-deployment/getting-started-for-xamarin
http://docs.telerik.com/devtools/android/download-and-deployment/installation-contents-and-dependencies