leaking power steering fluid and not able to see where leak is coming from

Check for fluid inside the accordion boots on the rack and pinion assembly. If there's any fluid in them, the rack is leaking and must be replaced. The easiest way to check is by sliding off the clamp on the small end where it seals to the inner tie rod end, then use a pick to pull the end of the boot open. You'll likely see fluid pour out if one of the end seals is leaking.