The decimal notation for thirty and seven-tenths is 30.7
thirty-seven and eight tenths
It is 9034.7
one hundred eighty- seven and thirty-three tenths
Five thousand, seven hundred and thirty. Or, Five thousand, seven hundred and thirty point zero (if you want to keep it as a decimal to two decimal places).
"One hundred and thirty-seven". Or "one hundred, thirty-seven". (if the number modifies a larger number, use the "and", as in "one hundred and thirty-seven thousand"). For room numbers, employee ID numbers, and so forth, a simple "one three seven" or "one thirty seven" can be used.
Fifty-six thousand, two hundred thirty-seven hundred thousandths