Finding the Fourth Proportional to 12,441.79, 17,162.13 and 7,963.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,441.79 : 17,162.13 = 7,963.96 : x
2. Step 2: Convert to fraction form
   12,441.79/17,162.13 = 7,963.96/x
3. Step 3: Cross multiply
   12,441.79x = 17,162.13 × 7,963.96
4. Step 4: Simplify right side
   12,441.79x = 136,678,516.83
5. Step 5: Solve for x
   x = 136,678,516.83/12,441.79
6. Step 6: Final answer
   x = 10,985.44