Finding the Fourth Proportional to 6,228.45, 8,591.76 and 3,955.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,228.45 : 8,591.76 = 3,955.59 : x
2. Step 2: Convert to fraction form
   6,228.45/8,591.76 = 3,955.59/x
3. Step 3: Cross multiply
   6,228.45x = 8,591.76 × 3,955.59
4. Step 4: Simplify right side
   6,228.45x = 33,985,479.94
5. Step 5: Solve for x
   x = 33,985,479.94/6,228.45
6. Step 6: Final answer
   x = 5,456.49