Finding the Fourth Proportional to 8,105.90, 12,160.14 and 3,488.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.90 : 12,160.14 = 3,488.94 : x
2. Step 2: Convert to fraction form
   8,105.90/12,160.14 = 3,488.94/x
3. Step 3: Cross multiply
   8,105.90x = 12,160.14 × 3,488.94
4. Step 4: Simplify right side
   8,105.90x = 42,425,998.85
5. Step 5: Solve for x
   x = 42,425,998.85/8,105.90
6. Step 6: Final answer
   x = 5,233.97