There are three equations for the three numbers.
Let x = the first number.
Let y = the second number.
Let z = the third number.
The first equation comes from this sentence:
the sum of three numbers is 134.
x + y + z = 134
The second equation comes from this sentence:
the second number is 5 more than the first
y = x + 5
The third equation comes from this sentence:
the third number is 4 more than three times the second.
z = 3y + 4
Can you solve this syetem?:
x + y + z = 134
y = x + 5
z = 3y + 4
If not, post again asking how.
Answer: x = 22, y=27, z=85
Edwin