Finding the Fourth Proportional to 12,738.33, 19,105.63 and 3,378.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,738.33 : 19,105.63 = 3,378.92 : x
2. Step 2: Convert to fraction form
   12,738.33/19,105.63 = 3,378.92/x
3. Step 3: Cross multiply
   12,738.33x = 19,105.63 × 3,378.92
4. Step 4: Simplify right side
   12,738.33x = 64,556,291.34
5. Step 5: Solve for x
   x = 64,556,291.34/12,738.33
6. Step 6: Final answer
   x = 5,067.88