Finding the Fourth Proportional to 6,320.62, 8,722.55 and 3,487.95

Step by Step Solution

1. Step 1: Write the proportion equation
   6,320.62 : 8,722.55 = 3,487.95 : x
2. Step 2: Convert to fraction form
   6,320.62/8,722.55 = 3,487.95/x
3. Step 3: Cross multiply
   6,320.62x = 8,722.55 × 3,487.95
4. Step 4: Simplify right side
   6,320.62x = 30,423,818.27
5. Step 5: Solve for x
   x = 30,423,818.27/6,320.62
6. Step 6: Final answer
   x = 4,813.42