connecting Speakers for equal load?

Hey There guyz i have speakers as follows
2*15w 4ohm
1*18w 4 ohm
1*40w 4 ohm
and a small speaker which has impedance of 3 ohm dont know of watt for this
i have an 100 watt amplifier (50w*2 or 50w/channel) how should i connect those speakers for equal load on amplifiers and which speakers i shouldnt connect
sory im really noob at this i connected those speakers in parallel at low volume they worked fine but wanna build a portable speaker which could run at full volume amplifer i have is XH-M189 running at 18v 2 amps.