Finding the Fourth Proportional to 12,191.35, 18,274.78 and 8,297.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,191.35 : 18,274.78 = 8,297.59 : x
2. Step 2: Convert to fraction form
   12,191.35/18,274.78 = 8,297.59/x
3. Step 3: Cross multiply
   12,191.35x = 18,274.78 × 8,297.59
4. Step 4: Simplify right side
   12,191.35x = 151,636,631.78
5. Step 5: Solve for x
   x = 151,636,631.78/12,191.35
6. Step 6: Final answer
   x = 12,438.05