Finding the Fourth Proportional to 8,108.32, 12,162.56 and 2,561.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.32 : 12,162.56 = 2,561.56 : x
2. Step 2: Convert to fraction form
   8,108.32/12,162.56 = 2,561.56/x
3. Step 3: Cross multiply
   8,108.32x = 12,162.56 × 2,561.56
4. Step 4: Simplify right side
   8,108.32x = 31,155,127.19
5. Step 5: Solve for x
   x = 31,155,127.19/8,108.32
6. Step 6: Final answer
   x = 3,842.37