Finding the Fourth Proportional to 12,760.58, 19,139.36 and 3,401.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.58 : 19,139.36 = 3,401.30 : x
2. Step 2: Convert to fraction form
   12,760.58/19,139.36 = 3,401.30/x
3. Step 3: Cross multiply
   12,760.58x = 19,139.36 × 3,401.30
4. Step 4: Simplify right side
   12,760.58x = 65,098,736.01
5. Step 5: Solve for x
   x = 65,098,736.01/12,760.58
6. Step 6: Final answer
   x = 5,101.55