What is the value of x in this diagram?

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So I'm pretty familiar with SOH-CAH-TOA but this question in particular looks a bit different and I'm not sure how to go about it. Thanks in advance!

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Start by finding the middle side length.$$\tan(54^o)=\frac{z}{17}$$$$z=17\tan(54^o)$$$$\cos(23^o)=\frac zx$$$$x=\frac z{\cos(23^o)}=\frac{17\tan(54^o)}{\cos(23^o)}$$