Finding the Fourth Proportional to 12,422.72, 18,630.12 and 4,101.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,422.72 : 18,630.12 = 4,101.18 : x
2. Step 2: Convert to fraction form
   12,422.72/18,630.12 = 4,101.18/x
3. Step 3: Cross multiply
   12,422.72x = 18,630.12 × 4,101.18
4. Step 4: Simplify right side
   12,422.72x = 76,405,475.54
5. Step 5: Solve for x
   x = 76,405,475.54/12,422.72
6. Step 6: Final answer
   x = 6,150.46