Finding the Fourth Proportional to 11,076.76, 16,618.36 and 3,580.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,076.76 : 16,618.36 = 3,580.17 : x
2. Step 2: Convert to fraction form
   11,076.76/16,618.36 = 3,580.17/x
3. Step 3: Cross multiply
   11,076.76x = 16,618.36 × 3,580.17
4. Step 4: Simplify right side
   11,076.76x = 59,496,553.92
5. Step 5: Solve for x
   x = 59,496,553.92/11,076.76
6. Step 6: Final answer
   x = 5,371.30