Star to delta transformation circuit
See below. I've transformed the 24 ohm, 120 ohm and 60 ohm into R1, R2 and R3 positions: -



If you do the math in value translation you can find current \$i_2\$ because: -


R2 is in parallel with R4 and R3 is in parallel with R5 
they are then in series
they are then in parallel with R1
this means you can calculate the currents through 5 ohm and 43 ohms
it follows that you can calculate the voltage on each node
it then follows you can calculate \$i_2\$


I'll leave you to do the rest and don't forget, once you have \$i_1\$ and \$i_2\$ you transform back to star to get the voltage across the 60 ohm.