Finding the Fourth Proportional to 6,385.55, 8,811.97 and 3,591.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.55 : 8,811.97 = 3,591.05 : x
2. Step 2: Convert to fraction form
   6,385.55/8,811.97 = 3,591.05/x
3. Step 3: Cross multiply
   6,385.55x = 8,811.97 × 3,591.05
4. Step 4: Simplify right side
   6,385.55x = 31,644,171.83
5. Step 5: Solve for x
   x = 31,644,171.83/6,385.55
6. Step 6: Final answer
   x = 4,955.59