Finding the Fourth Proportional to 12,353.50, 18,532.17 and 4,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353.50 : 18,532.17 = 4,147.42 : x
2. Step 2: Convert to fraction form
   12,353.50/18,532.17 = 4,147.42/x
3. Step 3: Cross multiply
   12,353.50x = 18,532.17 × 4,147.42
4. Step 4: Simplify right side
   12,353.50x = 76,860,692.50
5. Step 5: Solve for x
   x = 76,860,692.50/12,353.50
6. Step 6: Final answer
   x = 6,221.77