Finding the Fourth Proportional to 12,016.98, 18,026.54 and 4,225.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.98 : 18,026.54 = 4,225.86 : x
2. Step 2: Convert to fraction form
   12,016.98/18,026.54 = 4,225.86/x
3. Step 3: Cross multiply
   12,016.98x = 18,026.54 × 4,225.86
4. Step 4: Simplify right side
   12,016.98x = 76,177,634.32
5. Step 5: Solve for x
   x = 76,177,634.32/12,016.98
6. Step 6: Final answer
   x = 6,339.17