Finding the Fourth Proportional to 12,234, 18,353.16 and 4,443.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,234 : 18,353.16 = 4,443.60 : x
2. Step 2: Convert to fraction form
   12,234/18,353.16 = 4,443.60/x
3. Step 3: Cross multiply
   12,234x = 18,353.16 × 4,443.60
4. Step 4: Simplify right side
   12,234x = 81,554,101.78
5. Step 5: Solve for x
   x = 81,554,101.78/12,234
6. Step 6: Final answer
   x = 6,666.18