Finding the Fourth Proportional to 13,150.48, 18,147.60 and 7,182.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.48 : 18,147.60 = 7,182.04 : x
2. Step 2: Convert to fraction form
   13,150.48/18,147.60 = 7,182.04/x
3. Step 3: Cross multiply
   13,150.48x = 18,147.60 × 7,182.04
4. Step 4: Simplify right side
   13,150.48x = 130,336,789.10
5. Step 5: Solve for x
   x = 130,336,789.10/13,150.48
6. Step 6: Final answer
   x = 9,911.18