Kimberly's brother picked 3 x 15 = <<3*15=45>>45 strawberries.
Kimberly picked 8 x 45 = <<8*45=360>>360 strawberries.
Kimberly's parents picked 360 - 93 = <<360-93=267>>267 strawberries.
Altogether, they picked 45 + 360 + 267 = <<45+360+267=672>>672 strawberries.
Each of them will have 672/4 = <<672/4=168>>168 strawberries.
#### 168