| ( | X | − | 4500 | ) | ÷ | 113 100 | × | 13 100 | = | 3 2500 | X | ÷ | 113 100 |
| Left side of the equation = | ( | X | − | 4500 | ) | × | 13 113 |
| ( | X | − | 4500 | ) | × | 13 113 | = | 3 2500 | X | ÷ | 113 100 |
| Left side of the equation = | X | × | 13 113 | − | 4500 | × | 13 113 |
| = | X | × | 13 113 | − | 58500 113 |
13 113 | X | − | 58500 113 | = | 3 2500 | X | ÷ | 113 100 |
| Right side of the equation = | 3 2825 | X |
13 113 | X | − | 58500 113 | = | 3 2825 | X |
13 113 | X | − | 3 2825 | X | = | 58500 113 |
322 2825 | X | = | 58500 113 |
| X | = | 58500 113 | ÷ | 322 2825 |
| = | 58500 113 | × | 2825 322 |
| = | 29250 113 | × | 2825 161 |
| X | = | 82631250 18193 |
| X | = | 731250 161 |
| X | = | 4541.925466 |