Finding the Fourth Proportional to 11,751, 16,211.52 and 7,716.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,751 : 16,211.52 = 7,716.72 : x
2. Step 2: Convert to fraction form
   11,751/16,211.52 = 7,716.72/x
3. Step 3: Cross multiply
   11,751x = 16,211.52 × 7,716.72
4. Step 4: Simplify right side
   11,751x = 125,099,760.61
5. Step 5: Solve for x
   x = 125,099,760.61/11,751
6. Step 6: Final answer
   x = 10,645.88