Finding the Fourth Proportional to 13,148.83, 18,144.59 and 7,179.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,148.83 : 18,144.59 = 7,179.29 : x
2. Step 2: Convert to fraction form
   13,148.83/18,144.59 = 7,179.29/x
3. Step 3: Cross multiply
   13,148.83x = 18,144.59 × 7,179.29
4. Step 4: Simplify right side
   13,148.83x = 130,265,146.92
5. Step 5: Solve for x
   x = 130,265,146.92/13,148.83
6. Step 6: Final answer
   x = 9,906.98