Problem 12 (2024 AMC 8)

Rohan keeps a total of $90$ guppies in $4$ fish tanks. There is $1$ more guppy in the $2$nd tank than the $1$st tank. There are $2$ more guppies in the $3$rd tank than the $2$nd tank. There are $3$ more guppies in the $4$th tank than the $3$rd tank. How many guppies are in the $4$th tank?