Hi Krishna - you can try it but you're on your own. Oracle doesn't certify support or test 19c DB with 220.127.116.11.x. Honestly for a critical financial system to attempt to run on an unsupported database is a mistake on so many levels. The push by IT compliance requirements are common factors across most organizations, I would suggest looking at how to get your EPM stack upgraded ASAP as an alternative. The time and effort you will put into the POC for this project could be spent on planning an upgrade to a supported platform. Moving those products you've noted isn't difficult so you'll likely have minimal application consulting or functional issues to contend with.
One other note, from a technology perspective, 18.104.22.168.x was released over 7 years ago and is likely running on EOL operating systems as well. I would think that would be a bigger push to get remedied?
Certified Cloud Architect
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