Finding the Fourth Proportional to 16,420.74, 22,662.84 and 9,710.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,420.74 : 22,662.84 = 9,710.30 : x
2. Step 2: Convert to fraction form
   16,420.74/22,662.84 = 9,710.30/x
3. Step 3: Cross multiply
   16,420.74x = 22,662.84 × 9,710.30
4. Step 4: Simplify right side
   16,420.74x = 220,062,861.94
5. Step 5: Solve for x
   x = 220,062,861.94/16,420.74
6. Step 6: Final answer
   x = 13,401.52