Finding the Fourth Proportional to 13,096.38, 18,072.72 and 7,719.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,096.38 : 18,072.72 = 7,719.36 : x
2. Step 2: Convert to fraction form
   13,096.38/18,072.72 = 7,719.36/x
3. Step 3: Cross multiply
   13,096.38x = 18,072.72 × 7,719.36
4. Step 4: Simplify right side
   13,096.38x = 139,509,831.86
5. Step 5: Solve for x
   x = 139,509,831.86/13,096.38
6. Step 6: Final answer
   x = 10,652.55