Use animation data from fbx file to do animation

I know how to read skinning data and animation data from fbx. what i dont know is how to combine those data to do animation. can someone help me? I'm following the article, https://www.gamedev.net/tutorials/_/technical/graphics-programming-and-theory/how-to-work-with-fbx-sdk-r3582/

	inStream << "\t<skeleton count='" << mSkeleton.mJoints.size() << "'>" << std::endl;
	for (unsigned int i = 0; i < mSkeleton.mJoints.size(); ++i)
	{
		inStream << "\t\t<joint id='" << i << "' name='" << mSkeleton.mJoints[i].mName << "' parent='" << mSkeleton.mJoints[i].mParentIndex << "'>\n";
		inStream << "\t\t\t";
		FbxVector4 translation = mSkeleton …