Dynamic Values in text box using DAX functions

Your best bet is to use smart narrative. Simple string concats also work. 
For eg. create a measure for all the stuff u looking for

business name: SELECTEDVALUE( Table[businessname])

WEIGHTS sum: SUM( Table[WEIGHTS])

For the second third and forth highest weight u shud define what ur basis of such classification and then. This measure:

var mytable=SUMMARIZE( table, [basiscolumn1], [basiscolumn2],.... and more u want)

var mytable2=ADDCOLUMNS(mytable,"sum of weights", calculate(sum( weights)))

var mytable3=ADDCOLUMNS(mytable2, "rank", rankx(mytable2,,[sum of weights])

var mysumx=sumx(filter(mytable3,[rank]=3)),[sum of weights])

Return

mysumx