Finding the Fourth Proportional to 8,728.56, 12,045.60 and 5,002.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728.56 : 12,045.60 = 5,002.56 : x
2. Step 2: Convert to fraction form
   8,728.56/12,045.60 = 5,002.56/x
3. Step 3: Cross multiply
   8,728.56x = 12,045.60 × 5,002.56
4. Step 4: Simplify right side
   8,728.56x = 60,258,836.74
5. Step 5: Solve for x
   x = 60,258,836.74/8,728.56
6. Step 6: Final answer
   x = 6,903.64