Finding the Fourth Proportional to 8,323.78, 12,480.80 and 5,695.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.78 : 12,480.80 = 5,695.34 : x
2. Step 2: Convert to fraction form
   8,323.78/12,480.80 = 5,695.34/x
3. Step 3: Cross multiply
   8,323.78x = 12,480.80 × 5,695.34
4. Step 4: Simplify right side
   8,323.78x = 71,082,399.47
5. Step 5: Solve for x
   x = 71,082,399.47/8,323.78
6. Step 6: Final answer
   x = 8,539.68