Finding the Fourth Proportional to 16,530.46, 24,798.72 and 5,440.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,530.46 : 24,798.72 = 5,440.30 : x
2. Step 2: Convert to fraction form
   16,530.46/24,798.72 = 5,440.30/x
3. Step 3: Cross multiply
   16,530.46x = 24,798.72 × 5,440.30
4. Step 4: Simplify right side
   16,530.46x = 134,912,476.42
5. Step 5: Solve for x
   x = 134,912,476.42/16,530.46
6. Step 6: Final answer
   x = 8,161.45