Finding the Fourth Proportional to 16,136.56, 22,269.90 and 9,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,136.56 : 22,269.90 = 9,064.72 : x
2. Step 2: Convert to fraction form
   16,136.56/22,269.90 = 9,064.72/x
3. Step 3: Cross multiply
   16,136.56x = 22,269.90 × 9,064.72
4. Step 4: Simplify right side
   16,136.56x = 201,870,407.93
5. Step 5: Solve for x
   x = 201,870,407.93/16,136.56
6. Step 6: Final answer
   x = 12,510.13