Rlhcat

I'm new to quilting and am fixing to do a bargello quilt as a wedding gift for my cousins daughter the pattern I'm using is 80" x 72" this is without a border. I need to enlarge it to 112" x 112" but i haven't been able to find out how to do this can anyone help me? Oh the pattern I'm using is called "Little Hearts."

Thanks for any help y'all can give me.