Finding the Fourth Proportional to 12,651.50, 18,976.33 and 3,885.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,651.50 : 18,976.33 = 3,885.88 : x
2. Step 2: Convert to fraction form
   12,651.50/18,976.33 = 3,885.88/x
3. Step 3: Cross multiply
   12,651.50x = 18,976.33 × 3,885.88
4. Step 4: Simplify right side
   12,651.50x = 73,739,626.91
5. Step 5: Solve for x
   x = 73,739,626.91/12,651.50
6. Step 6: Final answer
   x = 5,828.53