Finding the Fourth Proportional to 16,319.57, 24,479.88 and 7,769.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,319.57 : 24,479.88 = 7,769.15 : x
2. Step 2: Convert to fraction form
   16,319.57/24,479.88 = 7,769.15/x
3. Step 3: Cross multiply
   16,319.57x = 24,479.88 × 7,769.15
4. Step 4: Simplify right side
   16,319.57x = 190,187,820.86
5. Step 5: Solve for x
   x = 190,187,820.86/16,319.57
6. Step 6: Final answer
   x = 11,653.98