Finding the Fourth Proportional to 16,647.67, 24,973.86 and 5,399.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,647.67 : 24,973.86 = 5,399.20 : x
2. Step 2: Convert to fraction form
   16,647.67/24,973.86 = 5,399.20/x
3. Step 3: Cross multiply
   16,647.67x = 24,973.86 × 5,399.20
4. Step 4: Simplify right side
   16,647.67x = 134,838,864.91
5. Step 5: Solve for x
   x = 134,838,864.91/16,647.67
6. Step 6: Final answer
   x = 8,099.56