Step-by-step Solution:

Solution : Alphanumeric Series

The pattern in this series is that each number (starting from the third number) is the sum of the two preceding numbers. This is a type of Fibonacci sequence.

1. Identify the Pattern

• 4 + 7 = 11
• 7 + 11 = 18
• 11 + 18 = 29
• 18 + 29 = 47

2. Find the Missing Number

To find the missing number, we continue the pattern by adding the two numbers that come before it:

29 + 47 = 76

3. Verify the Pattern Continues

We can check if our answer is correct by continuing the sequence:

• 47 + 76 = 123 (This matches the next number in the series).
• 76 + 123 = 199 (This matches the last number in the series).

The pattern is consistent.

Final Answer: The missing number in the series is 76.