Finding the Fourth Proportional to 5,666.78, 8,443.22 and 5,348.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,666.78 : 8,443.22 = 5,348.47 : x
2. Step 2: Convert to fraction form
   5,666.78/8,443.22 = 5,348.47/x
3. Step 3: Cross multiply
   5,666.78x = 8,443.22 × 5,348.47
4. Step 4: Simplify right side
   5,666.78x = 45,158,253.29
5. Step 5: Solve for x
   x = 45,158,253.29/5,666.78
6. Step 6: Final answer
   x = 7,968.94