Finding the Fourth Proportional to 12,012.41, 18,026.82 and 4,221.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,012.41 : 18,026.82 = 4,221.23 : x
2. Step 2: Convert to fraction form
   12,012.41/18,026.82 = 4,221.23/x
3. Step 3: Cross multiply
   12,012.41x = 18,026.82 × 4,221.23
4. Step 4: Simplify right side
   12,012.41x = 76,095,353.39
5. Step 5: Solve for x
   x = 76,095,353.39/12,012.41
6. Step 6: Final answer
   x = 6,334.73