Finding the Fourth Proportional to 12,182.96, 18,255.98 and 9,048.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.96 : 18,255.98 = 9,048.31 : x
2. Step 2: Convert to fraction form
   12,182.96/18,255.98 = 9,048.31/x
3. Step 3: Cross multiply
   12,182.96x = 18,255.98 × 9,048.31
4. Step 4: Simplify right side
   12,182.96x = 165,185,743.37
5. Step 5: Solve for x
   x = 165,185,743.37/12,182.96
6. Step 6: Final answer
   x = 13,558.76