Finding the Fourth Proportional to 11,105.88, 16,653.30 and 3,707.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.88 : 16,653.30 = 3,707.80 : x
2. Step 2: Convert to fraction form
   11,105.88/16,653.30 = 3,707.80/x
3. Step 3: Cross multiply
   11,105.88x = 16,653.30 × 3,707.80
4. Step 4: Simplify right side
   11,105.88x = 61,747,105.74
5. Step 5: Solve for x
   x = 61,747,105.74/11,105.88
6. Step 6: Final answer
   x = 5,559.86