Just to fill in a few blanks...
Your image is about 5 times wider than it is high (46320/9003 = 5.14).
Your paper is 2.75 time wider than it is high (47/17 = 2.76)
Since these ratios do not match you cannot print the image without cropping AND fill the entire sheet of paper.
Assuming that you will print it at 300 pixels per inch, your file would print 154" x 30" (46320/300 = 154 and 9003/300 = 30). (We could use a slightly different conversion factor here, with minor changes in the end result, but 300 pixels per inch is a nice round number and quite typical!)
Thus to fit the image on your paper it will need to be scaled down by a factor of 0.3 (47/154 = 0.3). Thus the height of the image will be 9" (30 x 0.3 = 9) when printed to fit the 47" wide paper.
In other words, you will have 8"(17-9 = 8) of blank paper "left over"; 4" top and bottom if you center the image on the paper.