Finding the Fourth Proportional to 16,571.43, 24,861.04 and 5,478.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,571.43 : 24,861.04 = 5,478.12 : x
2. Step 2: Convert to fraction form
   16,571.43/24,861.04 = 5,478.12/x
3. Step 3: Cross multiply
   16,571.43x = 24,861.04 × 5,478.12
4. Step 4: Simplify right side
   16,571.43x = 136,191,762.16
5. Step 5: Solve for x
   x = 136,191,762.16/16,571.43
6. Step 6: Final answer
   x = 8,218.47