Finding the Fourth Proportional to 9,183.98, 12,673.95 and 5,407.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,183.98 : 12,673.95 = 5,407.31 : x
2. Step 2: Convert to fraction form
   9,183.98/12,673.95 = 5,407.31/x
3. Step 3: Cross multiply
   9,183.98x = 12,673.95 × 5,407.31
4. Step 4: Simplify right side
   9,183.98x = 68,531,987.98
5. Step 5: Solve for x
   x = 68,531,987.98/9,183.98
6. Step 6: Final answer
   x = 7,462.12