Finding the Fourth Proportional to 8,541.50, 12,814.42 and 2,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,541.50 : 12,814.42 = 2,385.50 : x
2. Step 2: Convert to fraction form
   8,541.50/12,814.42 = 2,385.50/x
3. Step 3: Cross multiply
   8,541.50x = 12,814.42 × 2,385.50
4. Step 4: Simplify right side
   8,541.50x = 30,568,798.91
5. Step 5: Solve for x
   x = 30,568,798.91/8,541.50
6. Step 6: Final answer
   x = 3,578.86