Finding the Fourth Proportional to 16,571.63, 24,861.34 and 5,478.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,571.63 : 24,861.34 = 5,478.32 : x
2. Step 2: Convert to fraction form
   16,571.63/24,861.34 = 5,478.32/x
3. Step 3: Cross multiply
   16,571.63x = 24,861.34 × 5,478.32
4. Step 4: Simplify right side
   16,571.63x = 136,198,300.30
5. Step 5: Solve for x
   x = 136,198,300.30/16,571.63
6. Step 6: Final answer
   x = 8,218.76