Finding the Fourth Proportional to 12,048.09, 18,062.87 and 8,339.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,048.09 : 18,062.87 = 8,339.55 : x
2. Step 2: Convert to fraction form
   12,048.09/18,062.87 = 8,339.55/x
3. Step 3: Cross multiply
   12,048.09x = 18,062.87 × 8,339.55
4. Step 4: Simplify right side
   12,048.09x = 150,636,165.81
5. Step 5: Solve for x
   x = 150,636,165.81/12,048.09
6. Step 6: Final answer
   x = 12,502.91