Answer:
$181,768.65
Step-by-step explanation:
Post-money valuation = Exit value / (1 + Required return)^years
Post-money valuation = $307,000 / (1+14%)^4
Post-money valuation = $307,000 / (1.14)^4
Post-money valuation = $307,000 / 1.68896016
Post-money valuation = $181768.6451526482
Post-money valuation = $181,768.65
So, the post-money valuation of the company is $181,768.65.