Finding the Fourth Proportional to 10,067.63, 13,893.51 and 5,591.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067.63 : 13,893.51 = 5,591.79 : x
2. Step 2: Convert to fraction form
   10,067.63/13,893.51 = 5,591.79/x
3. Step 3: Cross multiply
   10,067.63x = 13,893.51 × 5,591.79
4. Step 4: Simplify right side
   10,067.63x = 77,689,562.32
5. Step 5: Solve for x
   x = 77,689,562.32/10,067.63
6. Step 6: Final answer
   x = 7,716.77