Finding the Fourth Proportional to 13,279.29, 18,323.52 and 7,614.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,279.29 : 18,323.52 = 7,614.28 : x
2. Step 2: Convert to fraction form
   13,279.29/18,323.52 = 7,614.28/x
3. Step 3: Cross multiply
   13,279.29x = 18,323.52 × 7,614.28
4. Step 4: Simplify right side
   13,279.29x = 139,520,354.68
5. Step 5: Solve for x
   x = 139,520,354.68/13,279.29
6. Step 6: Final answer
   x = 10,506.61