Finding the Fourth Proportional to 12,404.42, 17,106.37 and 8,147.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.42 : 17,106.37 = 8,147.97 : x
2. Step 2: Convert to fraction form
   12,404.42/17,106.37 = 8,147.97/x
3. Step 3: Cross multiply
   12,404.42x = 17,106.37 × 8,147.97
4. Step 4: Simplify right side
   12,404.42x = 139,382,147.82
5. Step 5: Solve for x
   x = 139,382,147.82/12,404.42
6. Step 6: Final answer
   x = 11,236.49