Finding the Fourth Proportional to 11,059.61, 16,591.43 and 3,664.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,059.61 : 16,591.43 = 3,664.10 : x
2. Step 2: Convert to fraction form
   11,059.61/16,591.43 = 3,664.10/x
3. Step 3: Cross multiply
   11,059.61x = 16,591.43 × 3,664.10
4. Step 4: Simplify right side
   11,059.61x = 60,792,709.30
5. Step 5: Solve for x
   x = 60,792,709.30/11,059.61
6. Step 6: Final answer
   x = 5,496.82