I need help on this.

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Precalculus question, image attached.