New version available here: vedabase.io

SB 12.2.7

evaṁ prajābhir duṣṭābhir
 ākīrṇe kṣiti-maṇḍale
brahma-viṭ-kṣatra-śūdrāṇāṁ
 yo balī bhavitā nṛpaḥ
Synonyms: 
evam — in this way; prajābhiḥ — with populace; duṣṭābhiḥ — corrupted; ākīrṇe — being crowded; kṣiti-maṇḍale — the earth globe; brahma — among the brāhmaṇas; viṭ — vaiśyas; kṣatra — kṣatriyas; śūdrāṇām — and śūdras; yaḥ — whoever; balī — the strongest; bhavitā — he will become; nṛpaḥ — the king.
Translation: 
As the earth thus becomes crowded with a corrupt population, whoever among any of the social classes shows himself to be the strongest will gain political power.