If you just need the solution you mention, weigh the following :
30 grams of PEG MME 5000
5.844 grams of NaCl
0.410 grams of NaAc (anhydrous)
and dissolve in water to a final volume of 100 ml.
However it is common to set up a range of solutions with different PEG concentrations. Furthermore, the sodium acetate is the buffer in this setup. For this we prepare stock solutions of 50% PEG, 1 M HAc/NaAc buffer pH 4.5, and 5 M NaCl, and then set up a series of solutions containing e.g. 24-32% PEG, 0.1 M HAc/NaAc pH 4.5, 1 M NaCl. Let me know if you need the protocol, I can send it by mail.