| X | ÷ | ( | 10000 | + | ( | X | × | 1 4 | ) | ) | = | 91 100 |
| Multiply both sides of the equation by: | ( | 10000 | + | ( | X | × | 1 4 | ) | ) |
| X | = | 91 100 | ( | 10000 | + | ( | X | × | 1 4 | ) | ) |
| X | = | 91 100 | × | 10000 | + | 91 100 | ( | X | × | 1 4 | ) |
| X | = | 9100 | + | 91 100 | ( | X | × | 1 4 | ) |
| X | = | 9100 | + | 91 100 | X | × | 1 4 |
| X | = | 9100 | + | 91 400 | X |
| X | − | 91 400 | X | = | 9100 |
309 400 | X | = | 9100 |
| X | = | 9100 | ÷ | 309 400 |
| = | 9100 | × | 400 309 |
| X | = | 3640000 309 |
| X | = | 11779.935275 |