Finding the Fourth Proportional to 8,255.34, 11,392.42 and 4,478.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,255.34 : 11,392.42 = 4,478.52 : x
2. Step 2: Convert to fraction form
   8,255.34/11,392.42 = 4,478.52/x
3. Step 3: Cross multiply
   8,255.34x = 11,392.42 × 4,478.52
4. Step 4: Simplify right side
   8,255.34x = 51,021,180.82
5. Step 5: Solve for x
   x = 51,021,180.82/8,255.34
6. Step 6: Final answer
   x = 6,180.39