Finding the Fourth Proportional to 16,290.12, 24,419.57 and 5,189.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290.12 : 24,419.57 = 5,189.62 : x
2. Step 2: Convert to fraction form
   16,290.12/24,419.57 = 5,189.62/x
3. Step 3: Cross multiply
   16,290.12x = 24,419.57 × 5,189.62
4. Step 4: Simplify right side
   16,290.12x = 126,728,288.86
5. Step 5: Solve for x
   x = 126,728,288.86/16,290.12
6. Step 6: Final answer
   x = 7,779.46