Finding the Fourth Proportional to 12,103.10, 16,709.55 and 7,855.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.10 : 16,709.55 = 7,855.82 : x
2. Step 2: Convert to fraction form
   12,103.10/16,709.55 = 7,855.82/x
3. Step 3: Cross multiply
   12,103.10x = 16,709.55 × 7,855.82
4. Step 4: Simplify right side
   12,103.10x = 131,267,217.08
5. Step 5: Solve for x
   x = 131,267,217.08/12,103.10
6. Step 6: Final answer
   x = 10,845.75