Finding the Fourth Proportional to 13,150.45, 18,147.93 and 7,182.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.45 : 18,147.93 = 7,182.06 : x
2. Step 2: Convert to fraction form
   13,150.45/18,147.93 = 7,182.06/x
3. Step 3: Cross multiply
   13,150.45x = 18,147.93 × 7,182.06
4. Step 4: Simplify right side
   13,150.45x = 130,339,567.51
5. Step 5: Solve for x
   x = 130,339,567.51/13,150.45
6. Step 6: Final answer
   x = 9,911.42