Finding the Fourth Proportional to 12,136.16, 16,744.92 and 7,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,136.16 : 16,744.92 = 7,418.72 : x
2. Step 2: Convert to fraction form
   12,136.16/16,744.92 = 7,418.72/x
3. Step 3: Cross multiply
   12,136.16x = 16,744.92 × 7,418.72
4. Step 4: Simplify right side
   12,136.16x = 124,225,872.90
5. Step 5: Solve for x
   x = 124,225,872.90/12,136.16
6. Step 6: Final answer
   x = 10,236.01