Final answer:
The blacksmith will need 312 nails to shoe all the horses in the stable.
Step-by-step explanation:
To find the total number of nails needed to shoe all the horses in the stable, we can multiply the number of horses by the number of shoes per horse and the number of nails per shoe.
Given that there are 26 horses, each horse needs 4 shoes, and each shoe requires 3 nails, we can calculate:
Total number of nails = Number of horses × Number of shoes per horse × Number of nails per shoe
Total number of nails = 26 × 4 × 3 = 312 nails.