Finding the Fourth Proportional to 7,716.52, 10,648.76 and 4,179.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,716.52 : 10,648.76 = 4,179.72 : x
2. Step 2: Convert to fraction form
   7,716.52/10,648.76 = 4,179.72/x
3. Step 3: Cross multiply
   7,716.52x = 10,648.76 × 4,179.72
4. Step 4: Simplify right side
   7,716.52x = 44,508,835.15
5. Step 5: Solve for x
   x = 44,508,835.15/7,716.52
6. Step 6: Final answer
   x = 5,767.99