Finding the Fourth Proportional to 12,427.82, 17,161.33 and 8,458.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,427.82 : 17,161.33 = 8,458.41 : x
2. Step 2: Convert to fraction form
   12,427.82/17,161.33 = 8,458.41/x
3. Step 3: Cross multiply
   12,427.82x = 17,161.33 × 8,458.41
4. Step 4: Simplify right side
   12,427.82x = 145,157,565.29
5. Step 5: Solve for x
   x = 145,157,565.29/12,427.82
6. Step 6: Final answer
   x = 11,680.05