Gemstone Products located in New York City, is one of the world's largest producers of beauty and related products. The company's consolidated balance sheets for the $2016$ and $2015$ fiscal years included the following $($$ in thousands$)$:

$20162015$

Current assets:

Receivables, less allowances of $$133,580$ in

$2016$ and $$89,180$ in $2015$ $ $462,100$ $ $441,600$

A disclosure note accompanying the financial statements reported the following $($$ in thousands$)$

Year Ended

$20162015$

$($In thousands$)$

Calculation of account receivables, net:

Receivables $ $595,680$ $ $530,780$

Less: allowance for doubtful accounts $(123,140)(77,840)$

Less: reserve for product returns $(10,440)(11,340)$

Trade accounts receivable, net: $ $462,100$ $ $441,600$

Assume that the company reported bad debt expense in $2016$ of $$192,600$ and had products returned for credit totaling $$187,240($sales price$).$ Net sales for $2016$ were $$5,658,800($$ in thousands$).$

Required:

$1.$ What is the amount of accounts receivable due from customers at the end of $2016$ and $2015?$

$2.$ What amount of accounts receivable did Gemstone write off during $2016?$

$3.$ What is the amount of Gemstone's gross sales for the $2016$ fiscal year?

$4.$ Assuming that all sales are made on a credit basis, what is the amount of cash Gemstone collected from customers during the $2016$ fiscal year?