This top growth stock can help you build wealth for retirement.MercadoLibre (MELI +0.50%) stock has been a phenomenal performer for investors. Over the last decade, a $10,000 investment would have grown to$176,000 at the time of this writing. Despite this run, the leading e-commerce operator in Latin America still has tremendous growth opportunity.Wall Street continues to underestimate this high-growth business. Here's why investors could see substantial gains over the next decade. MercadoLibre is unstoppa ...