Finding the Fourth Proportional to 9,136.09, 12,610.43 and 5,359.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.09 : 12,610.43 = 5,359.42 : x
2. Step 2: Convert to fraction form
   9,136.09/12,610.43 = 5,359.42/x
3. Step 3: Cross multiply
   9,136.09x = 12,610.43 × 5,359.42
4. Step 4: Simplify right side
   9,136.09x = 67,584,559.03
5. Step 5: Solve for x
   x = 67,584,559.03/9,136.09
6. Step 6: Final answer
   x = 7,397.54