def calculate_statistics(data):
    """
    Calculate statistics from a list of tuples containing version, value, and other metrics.

    Args:
        data (list): List of tuples containing version, value, and other metrics.

    Returns:
        tuple: Tuple containing the maximum value, minimum value, average value, and total count.
    """
    max_value = max(value for _, value, *_ in data)
    min_value = min(value for _, value, *_ in data)
    avg_value = sum(value for _, value, *_ in data) / len(data)
    return max_value, min_value, avg_value

# Example usage:
data = [('v5_1768236144', 108217.11959687909, 721, 15009.3),
        ('v5_1768235312', 89435.63603047856, 734, 12184.7),
        ('v5_1768235983', 98379.19963352643, 987, 9967.5)]

max_value, min_value, avg_value = calculate_statistics(data)
print(f"Max: {max_value}, Min: {min_value}, Avg: {avg_value}")