A car starts its journey with a full tank of fuel and consumes fuel at a rate that forms a geometric sequence. In the first hour, it consumes 10 liters of fuel. Every subsequent hour, it consumes 20% more fuel than the previous hour. How much fuel does the car consume in the fourth hour? Additionally, calculate the total amount of fuel consumed in the first four hours of the journey. Let's think step by step and output the final answer within \boxed{}.
user