Finding the Fourth Proportional to 9,136.55, 13,710.31 and 3,942.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.55 : 13,710.31 = 3,942.42 : x
2. Step 2: Convert to fraction form
   9,136.55/13,710.31 = 3,942.42/x
3. Step 3: Cross multiply
   9,136.55x = 13,710.31 × 3,942.42
4. Step 4: Simplify right side
   9,136.55x = 54,051,838.38
5. Step 5: Solve for x
   x = 54,051,838.38/9,136.55
6. Step 6: Final answer
   x = 5,916.00