Finding the Fourth Proportional to 16,520.69, 24,783.63 and 5,424.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.69 : 24,783.63 = 5,424.86 : x
2. Step 2: Convert to fraction form
   16,520.69/24,783.63 = 5,424.86/x
3. Step 3: Cross multiply
   16,520.69x = 24,783.63 × 5,424.86
4. Step 4: Simplify right side
   16,520.69x = 134,447,599.12
5. Step 5: Solve for x
   x = 134,447,599.12/16,520.69
6. Step 6: Final answer
   x = 8,138.14