Finding the Fourth Proportional to 16,939.35, 23,376.34 and 9,385.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,939.35 : 23,376.34 = 9,385.62 : x
2. Step 2: Convert to fraction form
   16,939.35/23,376.34 = 9,385.62/x
3. Step 3: Cross multiply
   16,939.35x = 23,376.34 × 9,385.62
4. Step 4: Simplify right side
   16,939.35x = 219,401,327.35
5. Step 5: Solve for x
   x = 219,401,327.35/16,939.35
6. Step 6: Final answer
   x = 12,952.17