Finding the Fourth Proportional to 8,107.69, 12,162.18 and 2,561.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,107.69 : 12,162.18 = 2,561.46 : x
2. Step 2: Convert to fraction form
   8,107.69/12,162.18 = 2,561.46/x
3. Step 3: Cross multiply
   8,107.69x = 12,162.18 × 2,561.46
4. Step 4: Simplify right side
   8,107.69x = 31,152,937.58
5. Step 5: Solve for x
   x = 31,152,937.58/8,107.69
6. Step 6: Final answer
   x = 3,842.39