Finding the Fourth Proportional to 6,304.50, 8,685.72 and 4,977.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,304.50 : 8,685.72 = 4,977.72 : x
2. Step 2: Convert to fraction form
   6,304.50/8,685.72 = 4,977.72/x
3. Step 3: Cross multiply
   6,304.50x = 8,685.72 × 4,977.72
4. Step 4: Simplify right side
   6,304.50x = 43,235,082.16
5. Step 5: Solve for x
   x = 43,235,082.16/6,304.50
6. Step 6: Final answer
   x = 6,857.81