Finding the Fourth Proportional to 10,829.72, 14,916.96 and 10,103.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,829.72 : 14,916.96 = 10,103.96 : x
2. Step 2: Convert to fraction form
   10,829.72/14,916.96 = 10,103.96/x
3. Step 3: Cross multiply
   10,829.72x = 14,916.96 × 10,103.96
4. Step 4: Simplify right side
   10,829.72x = 150,720,367.16
5. Step 5: Solve for x
   x = 150,720,367.16/10,829.72
6. Step 6: Final answer
   x = 13,917.29