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