Finding the Fourth Proportional to 16,986.05, 23,439.96 and 9,432.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,986.05 : 23,439.96 = 9,432.86 : x
2. Step 2: Convert to fraction form
   16,986.05/23,439.96 = 9,432.86/x
3. Step 3: Cross multiply
   16,986.05x = 23,439.96 × 9,432.86
4. Step 4: Simplify right side
   16,986.05x = 221,105,743.89
5. Step 5: Solve for x
   x = 221,105,743.89/16,986.05
6. Step 6: Final answer
   x = 13,016.91