Finding the Fourth Proportional to 9,136.56, 13,704.72 and 2,211.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.56 : 13,704.72 = 2,211.12 : x
2. Step 2: Convert to fraction form
   9,136.56/13,704.72 = 2,211.12/x
3. Step 3: Cross multiply
   9,136.56x = 13,704.72 × 2,211.12
4. Step 4: Simplify right side
   9,136.56x = 30,302,780.49
5. Step 5: Solve for x
   x = 30,302,780.49/9,136.56
6. Step 6: Final answer
   x = 3,316.65