Finding the Fourth Proportional to 8,510.54, 12,768.23 and 3,320.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.54 : 12,768.23 = 3,320.06 : x
2. Step 2: Convert to fraction form
   8,510.54/12,768.23 = 3,320.06/x
3. Step 3: Cross multiply
   8,510.54x = 12,768.23 × 3,320.06
4. Step 4: Simplify right side
   8,510.54x = 42,391,234.15
5. Step 5: Solve for x
   x = 42,391,234.15/8,510.54
6. Step 6: Final answer
   x = 4,981.03