Finding the Fourth Proportional to 12,740.82, 19,110.56 and 3,974.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,740.82 : 19,110.56 = 3,974.73 : x
2. Step 2: Convert to fraction form
   12,740.82/19,110.56 = 3,974.73/x
3. Step 3: Cross multiply
   12,740.82x = 19,110.56 × 3,974.73
4. Step 4: Simplify right side
   12,740.82x = 75,959,296.28
5. Step 5: Solve for x
   x = 75,959,296.28/12,740.82
6. Step 6: Final answer
   x = 5,961.88