Finding the Fourth Proportional to 8,243.82, 11,376.96 and 5,057.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,243.82 : 11,376.96 = 5,057.47 : x
2. Step 2: Convert to fraction form
   8,243.82/11,376.96 = 5,057.47/x
3. Step 3: Cross multiply
   8,243.82x = 11,376.96 × 5,057.47
4. Step 4: Simplify right side
   8,243.82x = 57,538,633.89
5. Step 5: Solve for x
   x = 57,538,633.89/8,243.82
6. Step 6: Final answer
   x = 6,979.61