Finding the Fourth Proportional to 12,222.53, 18,333.60 and 3,902.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222.53 : 18,333.60 = 3,902.49 : x
2. Step 2: Convert to fraction form
   12,222.53/18,333.60 = 3,902.49/x
3. Step 3: Cross multiply
   12,222.53x = 18,333.60 × 3,902.49
4. Step 4: Simplify right side
   12,222.53x = 71,546,774.05
5. Step 5: Solve for x
   x = 71,546,774.05/12,222.53
6. Step 6: Final answer
   x = 5,853.68