Finding the Fourth Proportional to 13,095.27, 18,072.11 and 7,719.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,095.27 : 18,072.11 = 7,719.30 : x
2. Step 2: Convert to fraction form
   13,095.27/18,072.11 = 7,719.30/x
3. Step 3: Cross multiply
   13,095.27x = 18,072.11 × 7,719.30
4. Step 4: Simplify right side
   13,095.27x = 139,504,058.02
5. Step 5: Solve for x
   x = 139,504,058.02/13,095.27
6. Step 6: Final answer
   x = 10,653.01