Finding the Fourth Proportional to 8,728.50, 12,046.98 and 5,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728.50 : 12,046.98 = 5,002.50 : x
2. Step 2: Convert to fraction form
   8,728.50/12,046.98 = 5,002.50/x
3. Step 3: Cross multiply
   8,728.50x = 12,046.98 × 5,002.50
4. Step 4: Simplify right side
   8,728.50x = 60,265,017.45
5. Step 5: Solve for x
   x = 60,265,017.45/8,728.50
6. Step 6: Final answer
   x = 6,904.40