Finding the Fourth Proportional to 9,067.65, 13,600.86 and 3,143.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,067.65 : 13,600.86 = 3,143.31 : x
2. Step 2: Convert to fraction form
   9,067.65/13,600.86 = 3,143.31/x
3. Step 3: Cross multiply
   9,067.65x = 13,600.86 × 3,143.31
4. Step 4: Simplify right side
   9,067.65x = 42,751,719.25
5. Step 5: Solve for x
   x = 42,751,719.25/9,067.65
6. Step 6: Final answer
   x = 4,714.75