Finding the Fourth Proportional to 14,247, 19,660.86 and 7,960.86

Step by Step Solution

1. Step 1: Write the proportion equation
   14,247 : 19,660.86 = 7,960.86 : x
2. Step 2: Convert to fraction form
   14,247/19,660.86 = 7,960.86/x
3. Step 3: Cross multiply
   14,247x = 19,660.86 × 7,960.86
4. Step 4: Simplify right side
   14,247x = 156,517,353.94
5. Step 5: Solve for x
   x = 156,517,353.94/14,247
6. Step 6: Final answer
   x = 10,985.99