Finding the Fourth Proportional to 8,083.64, 12,128.42 and 3,404.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,083.64 : 12,128.42 = 3,404.82 : x
2. Step 2: Convert to fraction form
   8,083.64/12,128.42 = 3,404.82/x
3. Step 3: Cross multiply
   8,083.64x = 12,128.42 × 3,404.82
4. Step 4: Simplify right side
   8,083.64x = 41,295,086.98
5. Step 5: Solve for x
   x = 41,295,086.98/8,083.64
6. Step 6: Final answer
   x = 5,108.48