Matrix Countrows with visual filter for 3 related tables

[sts68]

Hi,
I was searching through existing posts but didnt find a proper solution for my task.
I have 3 related tables, Product, Asset and Account

My matrix is combining data from all 3 tables:

[Account, Country, Region]: Account table
[Product]: Asset table
[Family]: Product table

I would like to get a count of accounts that is displayed in the matrix based on the slicer selection for Asset[Product] and Product[Family]. 
How can I achieve that? thanks!

sample xlsx and pbix  

[sjoerdvn · Accepted solution]

# No Accounts = CALCULATE(COUNTROWS('Account'), CROSSFILTER('Asset'[Customer], 'Account'[Account], Both))

[sts68]

thanks sjoerdvn, I needed a few adjustments to my production file, but your solution works. crossfilter was the keyword I was missing

[sts68]

Hi abc123, I updated the post with a link to my sample data, excel and pbix

[123abc]

please provie sample data file.

[sts68]

please find sample pbix and data here: sample xlsx and pbix