Finding the Fourth Proportional to 12,738.73, 19,081.15 and 8,056.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,738.73 : 19,081.15 = 8,056.32 : x
2. Step 2: Convert to fraction form
   12,738.73/19,081.15 = 8,056.32/x
3. Step 3: Cross multiply
   12,738.73x = 19,081.15 × 8,056.32
4. Step 4: Simplify right side
   12,738.73x = 153,723,850.37
5. Step 5: Solve for x
   x = 153,723,850.37/12,738.73
6. Step 6: Final answer
   x = 12,067.44