No subject

A simple way if you have Acrobat,  define a paper custom paper size that is what you want achieve, set that paper as the current default and "print" your original file to a new pdf "scaled to fit" that paper size. 
Any decent printer or publisher should be able to do this - in fact it is probably best to leave it to them since they may have to slightly adjust the size to accommodate things like layout on the actual paper size they use, trimming, extra margins required for binding and so on.
Just make it very clear to them you want the final print to be about 116% the size of your original PDF and get them to show you a proof at that size before they actually print the book.
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