Finding the Fourth Proportional to 12,003.94, 18,003.72 and 3,236.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.94 : 18,003.72 = 3,236.80 : x
2. Step 2: Convert to fraction form
   12,003.94/18,003.72 = 3,236.80/x
3. Step 3: Cross multiply
   12,003.94x = 18,003.72 × 3,236.80
4. Step 4: Simplify right side
   12,003.94x = 58,274,395.89
5. Step 5: Solve for x
   x = 58,274,395.89/12,003.94
6. Step 6: Final answer
   x = 4,854.61