Finding the Fourth Proportional to 8,493.76, 12,740.28 and 3,300.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,493.76 : 12,740.28 = 3,300.76 : x
2. Step 2: Convert to fraction form
   8,493.76/12,740.28 = 3,300.76/x
3. Step 3: Cross multiply
   8,493.76x = 12,740.28 × 3,300.76
4. Step 4: Simplify right side
   8,493.76x = 42,052,606.61
5. Step 5: Solve for x
   x = 42,052,606.61/8,493.76
6. Step 6: Final answer
   x = 4,951.00