Finding the Fourth Proportional to 11,459.59, 17,173.17 and 4,879.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,459.59 : 17,173.17 = 4,879.15 : x
2. Step 2: Convert to fraction form
   11,459.59/17,173.17 = 4,879.15/x
3. Step 3: Cross multiply
   11,459.59x = 17,173.17 × 4,879.15
4. Step 4: Simplify right side
   11,459.59x = 83,790,472.41
5. Step 5: Solve for x
   x = 83,790,472.41/11,459.59
6. Step 6: Final answer
   x = 7,311.82