Finding the Fourth Proportional to 13,280.04, 18,325.42 and 7,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,280.04 : 18,325.42 = 7,614.72 : x
2. Step 2: Convert to fraction form
   13,280.04/18,325.42 = 7,614.72/x
3. Step 3: Cross multiply
   13,280.04x = 18,325.42 × 7,614.72
4. Step 4: Simplify right side
   13,280.04x = 139,542,942.18
5. Step 5: Solve for x
   x = 139,542,942.18/13,280.04
6. Step 6: Final answer
   x = 10,507.72