Finding the Fourth Proportional to 11,644.86, 17,472.49 and 4,247.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,644.86 : 17,472.49 = 4,247.59 : x
2. Step 2: Convert to fraction form
   11,644.86/17,472.49 = 4,247.59/x
3. Step 3: Cross multiply
   11,644.86x = 17,472.49 × 4,247.59
4. Step 4: Simplify right side
   11,644.86x = 74,215,952.56
5. Step 5: Solve for x
   x = 74,215,952.56/11,644.86
6. Step 6: Final answer
   x = 6,373.28