This is the 15539th most frequent Polish word.
statkowi
"Statkowi" is the dative singular form of "statek," meaning "to the ship" or "for the ship."
The word "statkowi" is the dative case of "statek" (ship), used here as the indirect object receiving the help.
Pomogliśmy statkowi, który miał trudności na morzu.
We helped the ship that was having difficulties at sea.
Here "statkowi" again appears in the dative case of "statek," functioning as the recipient of the action of being shown the route.
Kapitan przyszedł z mapą, aby pokazać statkowi trasę.
The captain came with a map to show the ship the route.
In this sentence, "statkowi" is used in the dative case to indicate to whom the new equipment is intended.