Finding the Fourth Proportional to 11,104.72, 16,657.95 and 3,709.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,104.72 : 16,657.95 = 3,709.21 : x
2. Step 2: Convert to fraction form
   11,104.72/16,657.95 = 3,709.21/x
3. Step 3: Cross multiply
   11,104.72x = 16,657.95 × 3,709.21
4. Step 4: Simplify right side
   11,104.72x = 61,787,767.94
5. Step 5: Solve for x
   x = 61,787,767.94/11,104.72
6. Step 6: Final answer
   x = 5,564.10