Finding the Fourth Proportional to 6,325.22, 8,728.79 and 3,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,325.22 : 8,728.79 = 3,530.72 : x
2. Step 2: Convert to fraction form
   6,325.22/8,728.79 = 3,530.72/x
3. Step 3: Cross multiply
   6,325.22x = 8,728.79 × 3,530.72
4. Step 4: Simplify right side
   6,325.22x = 30,818,913.43
5. Step 5: Solve for x
   x = 30,818,913.43/6,325.22
6. Step 6: Final answer
   x = 4,872.39