There are 4 x 2 = <<4*2=8>>8 cargo ships.
There are 8 + 6 = <<8+6=14>>14 sailboats.
There are 14/7 = <<14/7=2>>2 fishing boats.
There are 4 + 8 + 14 + 2 = <<4+8+14+2=28>>28 vessels on the water.
#### 28