Finding the Fourth Proportional to 11,500.72, 17,253.68 and 4,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,500.72 : 17,253.68 = 4,105.96 : x
2. Step 2: Convert to fraction form
   11,500.72/17,253.68 = 4,105.96/x
3. Step 3: Cross multiply
   11,500.72x = 17,253.68 × 4,105.96
4. Step 4: Simplify right side
   11,500.72x = 70,842,919.93
5. Step 5: Solve for x
   x = 70,842,919.93/11,500.72
6. Step 6: Final answer
   x = 6,159.87