Finding the Fourth Proportional to 8,761.50, 13,141.50 and 3,214.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,761.50 : 13,141.50 = 3,214.62 : x
2. Step 2: Convert to fraction form
   8,761.50/13,141.50 = 3,214.62/x
3. Step 3: Cross multiply
   8,761.50x = 13,141.50 × 3,214.62
4. Step 4: Simplify right side
   8,761.50x = 42,244,928.73
5. Step 5: Solve for x
   x = 42,244,928.73/8,761.50
6. Step 6: Final answer
   x = 4,821.65