Finding the Fourth Proportional to 8,097.76, 12,149.60 and 3,418.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,097.76 : 12,149.60 = 3,418.96 : x
2. Step 2: Convert to fraction form
   8,097.76/12,149.60 = 3,418.96/x
3. Step 3: Cross multiply
   8,097.76x = 12,149.60 × 3,418.96
4. Step 4: Simplify right side
   8,097.76x = 41,538,996.42
5. Step 5: Solve for x
   x = 41,538,996.42/8,097.76
6. Step 6: Final answer
   x = 5,129.69