Finding the Fourth Proportional to 16,290.86, 24,424.33 and 5,191.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290.86 : 24,424.33 = 5,191.16 : x
2. Step 2: Convert to fraction form
   16,290.86/24,424.33 = 5,191.16/x
3. Step 3: Cross multiply
   16,290.86x = 24,424.33 × 5,191.16
4. Step 4: Simplify right side
   16,290.86x = 126,790,604.92
5. Step 5: Solve for x
   x = 126,790,604.92/16,290.86
6. Step 6: Final answer
   x = 7,782.93