Finding the Fourth Proportional to 12,441.50, 18,662.61 and 3,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,441.50 : 18,662.61 = 3,207.50 : x
2. Step 2: Convert to fraction form
   12,441.50/18,662.61 = 3,207.50/x
3. Step 3: Cross multiply
   12,441.50x = 18,662.61 × 3,207.50
4. Step 4: Simplify right side
   12,441.50x = 59,860,321.58
5. Step 5: Solve for x
   x = 59,860,321.58/12,441.50
6. Step 6: Final answer
   x = 4,811.34