Finding the Fourth Proportional to 12,111.71, 18,168.33 and 3,226.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.71 : 18,168.33 = 3,226.94 : x
2. Step 2: Convert to fraction form
   12,111.71/18,168.33 = 3,226.94/x
3. Step 3: Cross multiply
   12,111.71x = 18,168.33 × 3,226.94
4. Step 4: Simplify right side
   12,111.71x = 58,628,035.91
5. Step 5: Solve for x
   x = 58,628,035.91/12,111.71
6. Step 6: Final answer
   x = 4,840.61