Finding the Fourth Proportional to 8,108.30, 12,164.28 and 2,561.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.30 : 12,164.28 = 2,561.98 : x
2. Step 2: Convert to fraction form
   8,108.30/12,164.28 = 2,561.98/x
3. Step 3: Cross multiply
   8,108.30x = 12,164.28 × 2,561.98
4. Step 4: Simplify right side
   8,108.30x = 31,164,624.86
5. Step 5: Solve for x
   x = 31,164,624.86/8,108.30
6. Step 6: Final answer
   x = 3,843.54