Finding the Fourth Proportional to 10,067.12, 13,892.82 and 5,591.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067.12 : 13,892.82 = 5,591.29 : x
2. Step 2: Convert to fraction form
   10,067.12/13,892.82 = 5,591.29/x
3. Step 3: Cross multiply
   10,067.12x = 13,892.82 × 5,591.29
4. Step 4: Simplify right side
   10,067.12x = 77,678,785.54
5. Step 5: Solve for x
   x = 77,678,785.54/10,067.12
6. Step 6: Final answer
   x = 7,716.09