Finding the Fourth Proportional to 12,282.48, 18,418.61 and 7,595.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,282.48 : 18,418.61 = 7,595.61 : x
2. Step 2: Convert to fraction form
   12,282.48/18,418.61 = 7,595.61/x
3. Step 3: Cross multiply
   12,282.48x = 18,418.61 × 7,595.61
4. Step 4: Simplify right side
   12,282.48x = 139,900,540.32
5. Step 5: Solve for x
   x = 139,900,540.32/12,282.48
6. Step 6: Final answer
   x = 11,390.25