this sample is under the assumption that you have understanding of basic networking:
7206:
interface fa0/0 >> to one of the 4510
ip address x.x.x.y 255.255.255.0
4510:
conf t
int fa x/x >> to the 7206
switchport vlan x
vlan data
vlan 1
vlan 2
vlan 3
vlan 4
vlan 5
vlan x
exit
interface vlan x
ip address x.x.x.w 255.255.255.0
interface vlan 1
ip address 1.1.1.1 255.255.255.0
interface vlan 2
ip address 2.2.2.1 255.255.255.0
interface vlan 3
ip address 3.3.3.1 255.255.255.0
ip route 0.0.0.0 0.0.0.0 x.x.x.y
repeat above until you have all the vlans. Trunk the two 4510.
Trunk the ports connecting to the access switches.
The above example will allow the 4510 to do the intervlan routing and the rest of the routing be down by the 7206. The hosts in each vlan will have the interface vlan on 4510 as teir default gateway.