Finding the Fourth Proportional to 9,005.43, 13,508.19 and 3,162.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.43 : 13,508.19 = 3,162.09 : x
2. Step 2: Convert to fraction form
   9,005.43/13,508.19 = 3,162.09/x
3. Step 3: Cross multiply
   9,005.43x = 13,508.19 × 3,162.09
4. Step 4: Simplify right side
   9,005.43x = 42,714,112.52
5. Step 5: Solve for x
   x = 42,714,112.52/9,005.43
6. Step 6: Final answer
   x = 4,743.15