Finding the Fourth Proportional to 11,059.16, 16,590.76 and 3,664.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,059.16 : 16,590.76 = 3,664.06 : x
2. Step 2: Convert to fraction form
   11,059.16/16,590.76 = 3,664.06/x
3. Step 3: Cross multiply
   11,059.16x = 16,590.76 × 3,664.06
4. Step 4: Simplify right side
   11,059.16x = 60,789,489.45
5. Step 5: Solve for x
   x = 60,789,489.45/11,059.16
6. Step 6: Final answer
   x = 5,496.76