Finding the Fourth Proportional to 5,516.57, 7,607.72 and 3,724.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,516.57 : 7,607.72 = 3,724.38 : x
2. Step 2: Convert to fraction form
   5,516.57/7,607.72 = 3,724.38/x
3. Step 3: Cross multiply
   5,516.57x = 7,607.72 × 3,724.38
4. Step 4: Simplify right side
   5,516.57x = 28,334,049.52
5. Step 5: Solve for x
   x = 28,334,049.52/5,516.57
6. Step 6: Final answer
   x = 5,136.17