(99.2)(14.6)(53.7−28.4)​/.0667(86.45-13.08)

$\frac{(99.2)(14.6)(53.7-28.4)}{0.0667(86.45-13.08)}$

Start with working with the numerator

$(99.2)(14.6)(53.7 - 28.4)$

$(99.2)(14.6)(25.3)$

$99.2 *14.6 * 25.3$

$36642.496$

$\frac{36642.496}{0.0667(86.45-13.08)}$

Then work on the denominator

$0.0667 (86.45-13.08)$

$0.0667 (73.37)$

$0.0667 * 73.37$

$4.893779$

$\frac{36642.496}{4.893779} = 7487.56656...$

Rounded to 7,488

Hope this helps ;P