I think that those version numbers are not consistent. I know I have installed all three on mine and yet the version number is 13.6.2.21. If you have downloaded and installed them then it is current.
But if you have any doubt as to whether you have a certain patch - just install it again - no harm is done by re-installing a patch or update, the new install just replaces the previous.
I'm from Corel Support and from the screen shot that you posted, you have an updated software. For more information regarding the updated version of VideoStudio Pro x3, please access our Knowledgebase 764437.