Finding the Fourth Proportional to 11,447.10, 17,155.62 and 8,295.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,447.10 : 17,155.62 = 8,295.12 : x
2. Step 2: Convert to fraction form
   11,447.10/17,155.62 = 8,295.12/x
3. Step 3: Cross multiply
   11,447.10x = 17,155.62 × 8,295.12
4. Step 4: Simplify right side
   11,447.10x = 142,307,926.57
5. Step 5: Solve for x
   x = 142,307,926.57/11,447.10
6. Step 6: Final answer
   x = 12,431.79