Finding the Fourth Proportional to 8,107.60, 12,162.02 and 3,112.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,107.60 : 12,162.02 = 3,112.37 : x
2. Step 2: Convert to fraction form
   8,107.60/12,162.02 = 3,112.37/x
3. Step 3: Cross multiply
   8,107.60x = 12,162.02 × 3,112.37
4. Step 4: Simplify right side
   8,107.60x = 37,852,744.37
5. Step 5: Solve for x
   x = 37,852,744.37/8,107.60
6. Step 6: Final answer
   x = 4,668.80