Finding the Fourth Proportional to 9,361.08, 12,918.42 and 5,169.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,361.08 : 12,918.42 = 5,169.42 : x
2. Step 2: Convert to fraction form
   9,361.08/12,918.42 = 5,169.42/x
3. Step 3: Cross multiply
   9,361.08x = 12,918.42 × 5,169.42
4. Step 4: Simplify right side
   9,361.08x = 66,780,738.72
5. Step 5: Solve for x
   x = 66,780,738.72/9,361.08
6. Step 6: Final answer
   x = 7,133.87