Finding the Fourth Proportional to 8,328.73, 12,404.71 and 8,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,328.73 : 12,404.71 = 8,288.50 : x
2. Step 2: Convert to fraction form
   8,328.73/12,404.71 = 8,288.50/x
3. Step 3: Cross multiply
   8,328.73x = 12,404.71 × 8,288.50
4. Step 4: Simplify right side
   8,328.73x = 102,816,438.84
5. Step 5: Solve for x
   x = 102,816,438.84/8,328.73
6. Step 6: Final answer
   x = 12,344.79