Finding the Fourth Proportional to 16,495.72, 22,728.42 and 11,181.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,495.72 : 22,728.42 = 11,181.30 : x
2. Step 2: Convert to fraction form
   16,495.72/22,728.42 = 11,181.30/x
3. Step 3: Cross multiply
   16,495.72x = 22,728.42 × 11,181.30
4. Step 4: Simplify right side
   16,495.72x = 254,133,282.55
5. Step 5: Solve for x
   x = 254,133,282.55/16,495.72
6. Step 6: Final answer
   x = 15,406.01