Finding the Fourth Proportional to 10,891.08, 16,339.56 and 3,100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.08 : 16,339.56 = 3,100.56 : x
2. Step 2: Convert to fraction form
   10,891.08/16,339.56 = 3,100.56/x
3. Step 3: Cross multiply
   10,891.08x = 16,339.56 × 3,100.56
4. Step 4: Simplify right side
   10,891.08x = 50,661,786.15
5. Step 5: Solve for x
   x = 50,661,786.15/10,891.08
6. Step 6: Final answer
   x = 4,651.68