Finding the Fourth Proportional to 12,674.88, 19,012.30 and 3,440.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.88 : 19,012.30 = 3,440.88 : x
2. Step 2: Convert to fraction form
   12,674.88/19,012.30 = 3,440.88/x
3. Step 3: Cross multiply
   12,674.88x = 19,012.30 × 3,440.88
4. Step 4: Simplify right side
   12,674.88x = 65,419,042.82
5. Step 5: Solve for x
   x = 65,419,042.82/12,674.88
6. Step 6: Final answer
   x = 5,161.31