Finding the Fourth Proportional to 12,146.42, 18,222.06 and 4,355.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146.42 : 18,222.06 = 4,355.84 : x
2. Step 2: Convert to fraction form
   12,146.42/18,222.06 = 4,355.84/x
3. Step 3: Cross multiply
   12,146.42x = 18,222.06 × 4,355.84
4. Step 4: Simplify right side
   12,146.42x = 79,372,377.83
5. Step 5: Solve for x
   x = 79,372,377.83/12,146.42
6. Step 6: Final answer
   x = 6,534.63