Finding the Fourth Proportional to 12,761.54, 19,143.77 and 3,401.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,761.54 : 19,143.77 = 3,401.69 : x
2. Step 2: Convert to fraction form
   12,761.54/19,143.77 = 3,401.69/x
3. Step 3: Cross multiply
   12,761.54x = 19,143.77 × 3,401.69
4. Step 4: Simplify right side
   12,761.54x = 65,121,058.24
5. Step 5: Solve for x
   x = 65,121,058.24/12,761.54
6. Step 6: Final answer
   x = 5,102.92