Finding the Fourth Proportional to 6,245.46, 8,614.50 and 3,888.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,245.46 : 8,614.50 = 3,888.72 : x
2. Step 2: Convert to fraction form
   6,245.46/8,614.50 = 3,888.72/x
3. Step 3: Cross multiply
   6,245.46x = 8,614.50 × 3,888.72
4. Step 4: Simplify right side
   6,245.46x = 33,499,378.44
5. Step 5: Solve for x
   x = 33,499,378.44/6,245.46
6. Step 6: Final answer
   x = 5,363.80