Finding the Fourth Proportional to 16,394.18, 22,621.83 and 9,320.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,394.18 : 22,621.83 = 9,320.45 : x
2. Step 2: Convert to fraction form
   16,394.18/22,621.83 = 9,320.45/x
3. Step 3: Cross multiply
   16,394.18x = 22,621.83 × 9,320.45
4. Step 4: Simplify right side
   16,394.18x = 210,845,635.42
5. Step 5: Solve for x
   x = 210,845,635.42/16,394.18
6. Step 6: Final answer
   x = 12,861.01