Finding the Fourth Proportional to 9,136.72, 12,608.88 and 5,362.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.72 : 12,608.88 = 5,362.36 : x
2. Step 2: Convert to fraction form
   9,136.72/12,608.88 = 5,362.36/x
3. Step 3: Cross multiply
   9,136.72x = 12,608.88 × 5,362.36
4. Step 4: Simplify right side
   9,136.72x = 67,613,353.76
5. Step 5: Solve for x
   x = 67,613,353.76/9,136.72
6. Step 6: Final answer
   x = 7,400.18