Finding the Fourth Proportional to 8,046.78, 12,070.15 and 3,116.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,046.78 : 12,070.15 = 3,116.41 : x
2. Step 2: Convert to fraction form
   8,046.78/12,070.15 = 3,116.41/x
3. Step 3: Cross multiply
   8,046.78x = 12,070.15 × 3,116.41
4. Step 4: Simplify right side
   8,046.78x = 37,615,536.16
5. Step 5: Solve for x
   x = 37,615,536.16/8,046.78
6. Step 6: Final answer
   x = 4,674.61