BubbleChart3D

BubbleChart3D[{{x1,y1,z1,u1},{x2,y2,z2,u2},…}] makes a 3D bubble chart with bubbles at positions {xi,yi,zi} with sizes ui.

BubbleChart3D[{…,wi[{xi,yi,zi,ui},…],…,wj[{xj,yj,zj,uj},…],…}] makes a 3D bubble chart with bubble features defined by the symbolic wrappers wk.

BubbleChart3D[{data1,data2,…}] makes a 3D bubble chart from multiple datasets datai. 

Please visit the official Wolfram Language Reference for more details and examples on core symbols.