Finding the Fourth Proportional to 10,891.94, 16,337.85 and 3,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.94 : 16,337.85 = 3,100.76 : x
2. Step 2: Convert to fraction form
   10,891.94/16,337.85 = 3,100.76/x
3. Step 3: Cross multiply
   10,891.94x = 16,337.85 × 3,100.76
4. Step 4: Simplify right side
   10,891.94x = 50,659,751.77
5. Step 5: Solve for x
   x = 50,659,751.77/10,891.94
6. Step 6: Final answer
   x = 4,651.12