Finding the Fourth Proportional to 8,103.35, 12,146.00 and 3,421.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.35 : 12,146.00 = 3,421.96 : x
2. Step 2: Convert to fraction form
   8,103.35/12,146.00 = 3,421.96/x
3. Step 3: Cross multiply
   8,103.35x = 12,146.00 × 3,421.96
4. Step 4: Simplify right side
   8,103.35x = 41,563,078.69
5. Step 5: Solve for x
   x = 41,563,078.69/8,103.35
6. Step 6: Final answer
   x = 5,129.12