Finding the Fourth Proportional to 12,118.48, 18,180.16 and 4,327.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,118.48 : 18,180.16 = 4,327.10 : x
2. Step 2: Convert to fraction form
   12,118.48/18,180.16 = 4,327.10/x
3. Step 3: Cross multiply
   12,118.48x = 18,180.16 × 4,327.10
4. Step 4: Simplify right side
   12,118.48x = 78,667,370.34
5. Step 5: Solve for x
   x = 78,667,370.34/12,118.48
6. Step 6: Final answer
   x = 6,491.52