Finding the Fourth Proportional to 11,719.94, 17,580.06 and 3,928.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,719.94 : 17,580.06 = 3,928.73 : x
2. Step 2: Convert to fraction form
   11,719.94/17,580.06 = 3,928.73/x
3. Step 3: Cross multiply
   11,719.94x = 17,580.06 × 3,928.73
4. Step 4: Simplify right side
   11,719.94x = 69,067,221.22
5. Step 5: Solve for x
   x = 69,067,221.22/11,719.94
6. Step 6: Final answer
   x = 5,893.14