Finding the Fourth Proportional to 8,046.76, 12,069.20 and 3,115.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,046.76 : 12,069.20 = 3,115.96 : x
2. Step 2: Convert to fraction form
   8,046.76/12,069.20 = 3,115.96/x
3. Step 3: Cross multiply
   8,046.76x = 12,069.20 × 3,115.96
4. Step 4: Simplify right side
   8,046.76x = 37,607,144.43
5. Step 5: Solve for x
   x = 37,607,144.43/8,046.76
6. Step 6: Final answer
   x = 4,673.58