Finding the Fourth Proportional to 12,368.42, 18,555.27 and 7,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,368.42 : 18,555.27 = 7,105.82 : x
2. Step 2: Convert to fraction form
   12,368.42/18,555.27 = 7,105.82/x
3. Step 3: Cross multiply
   12,368.42x = 18,555.27 × 7,105.82
4. Step 4: Simplify right side
   12,368.42x = 131,850,408.67
5. Step 5: Solve for x
   x = 131,850,408.67/12,368.42
6. Step 6: Final answer
   x = 10,660.25