Finding the Fourth Proportional to 8,109.30, 12,165.78 and 2,562.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.30 : 12,165.78 = 2,562.98 : x
2. Step 2: Convert to fraction form
   8,109.30/12,165.78 = 2,562.98/x
3. Step 3: Cross multiply
   8,109.30x = 12,165.78 × 2,562.98
4. Step 4: Simplify right side
   8,109.30x = 31,180,650.82
5. Step 5: Solve for x
   x = 31,180,650.82/8,109.30
6. Step 6: Final answer
   x = 3,845.05