A company has 4 depots and 4 customers. The depots are given in the rows of the tables below and the columns represent customers. At the end of each row, supplies of the depots are given. At the end of each column, demands of the customers are given. The table below also provides transportation costs (in U.S. dollars). Fill in the tables below using the intuitive low-cost method, each cell representing the amount of products sent from the related depot to the related customer. Calculate total transportation cost. Customer 1 Customer 2 Customer 3 Customer 4 Depot 1 8 10 2 6 6000 Depot 2 15 13 9 11 6000 Depot 3 4 3 12 5000 Depot 4 7 5 12 8 4000 2000 8000 7000 4000