Finding the Fourth Proportional to 12,111.77, 18,168.06 and 3,227.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.77 : 18,168.06 = 3,227.02 : x
2. Step 2: Convert to fraction form
   12,111.77/18,168.06 = 3,227.02/x
3. Step 3: Cross multiply
   12,111.77x = 18,168.06 × 3,227.02
4. Step 4: Simplify right side
   12,111.77x = 58,628,659.66
5. Step 5: Solve for x
   x = 58,628,659.66/12,111.77
6. Step 6: Final answer
   x = 4,840.63