Finding the Fourth Proportional to 6,728.08, 10,081.88 and 4,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,728.08 : 10,081.88 = 4,528.72 : x
2. Step 2: Convert to fraction form
   6,728.08/10,081.88 = 4,528.72/x
3. Step 3: Cross multiply
   6,728.08x = 10,081.88 × 4,528.72
4. Step 4: Simplify right side
   6,728.08x = 45,658,011.59
5. Step 5: Solve for x
   x = 45,658,011.59/6,728.08
6. Step 6: Final answer
   x = 6,786.19