Finding the Fourth Proportional to 12,760.66, 19,141.98 and 3,995.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.66 : 19,141.98 = 3,995.50 : x
2. Step 2: Convert to fraction form
   12,760.66/19,141.98 = 3,995.50/x
3. Step 3: Cross multiply
   12,760.66x = 19,141.98 × 3,995.50
4. Step 4: Simplify right side
   12,760.66x = 76,481,781.09
5. Step 5: Solve for x
   x = 76,481,781.09/12,760.66
6. Step 6: Final answer
   x = 5,993.56