Finding the Fourth Proportional to 6,650.57, 9,978.79 and 3,529.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,650.57 : 9,978.79 = 3,529.82 : x
2. Step 2: Convert to fraction form
   6,650.57/9,978.79 = 3,529.82/x
3. Step 3: Cross multiply
   6,650.57x = 9,978.79 × 3,529.82
4. Step 4: Simplify right side
   6,650.57x = 35,223,332.52
5. Step 5: Solve for x
   x = 35,223,332.52/6,650.57
6. Step 6: Final answer
   x = 5,296.29