2.7.58 Function Properties

Condition: Given the function \ [f (x) = \ left \ {\ begin {array} {c} \ frac {\ ln (1+3 x)} {x^}} \ frac {b} {x}-\ frac {c (1+3 3 3 x)^{\ frac {1} {5}}} {x^{2}} \\ d- \ frac {12069} {500} x^{\ ln \ left (1+ \ frac {3} {2} x \ right)} x> 0 \ end {Array} \ Right. \] At what values of the parameters \ (a, b, c, d \) function \ (f (x) \) is continuous?