Finding the Fourth Proportional to 16,215.69, 24,360.14 and 10,679.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,215.69 : 24,360.14 = 10,679.85 : x
2. Step 2: Convert to fraction form
   16,215.69/24,360.14 = 10,679.85/x
3. Step 3: Cross multiply
   16,215.69x = 24,360.14 × 10,679.85
4. Step 4: Simplify right side
   16,215.69x = 260,162,667.88
5. Step 5: Solve for x
   x = 260,162,667.88/16,215.69
6. Step 6: Final answer
   x = 16,043.88