Finding the Fourth Proportional to 12,441.96, 17,161.83 and 7,958.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,441.96 : 17,161.83 = 7,958.61 : x
2. Step 2: Convert to fraction form
   12,441.96/17,161.83 = 7,958.61/x
3. Step 3: Cross multiply
   12,441.96x = 17,161.83 × 7,958.61
4. Step 4: Simplify right side
   12,441.96x = 136,584,311.86
5. Step 5: Solve for x
   x = 136,584,311.86/12,441.96
6. Step 6: Final answer
   x = 10,977.72