Finding the Fourth Proportional to 12,601.43, 17,389.83 and 6,936.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,601.43 : 17,389.83 = 6,936.05 : x
2. Step 2: Convert to fraction form
   12,601.43/17,389.83 = 6,936.05/x
3. Step 3: Cross multiply
   12,601.43x = 17,389.83 × 6,936.05
4. Step 4: Simplify right side
   12,601.43x = 120,616,780.35
5. Step 5: Solve for x
   x = 120,616,780.35/12,601.43
6. Step 6: Final answer
   x = 9,571.68