Sketch up .fbx import
There is none. You will have to use some other software to convert it into a format like Collada (.dae) that SketchUp can import. Autodesk used to have a free application for this. It can be downloaded from https://www.autodesk.com/developer-network/platform-technologies/fbx-converter-archives but the documentation says nothing about Windows 10 compatibility.
There are some 3rd party import extensions. But may not be free …