Finding the Fourth Proportional to 8,411.50, 12,623.01 and 2,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.50 : 12,623.01 = 2,939.50 : x
2. Step 2: Convert to fraction form
   8,411.50/12,623.01 = 2,939.50/x
3. Step 3: Cross multiply
   8,411.50x = 12,623.01 × 2,939.50
4. Step 4: Simplify right side
   8,411.50x = 37,105,337.90
5. Step 5: Solve for x
   x = 37,105,337.90/8,411.50
6. Step 6: Final answer
   x = 4,411.26