Finding the Fourth Proportional to 8,123.37, 12,180.47 and 5,351.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.37 : 12,180.47 = 5,351.55 : x
2. Step 2: Convert to fraction form
   8,123.37/12,180.47 = 5,351.55/x
3. Step 3: Cross multiply
   8,123.37x = 12,180.47 × 5,351.55
4. Step 4: Simplify right side
   8,123.37x = 65,184,367.47
5. Step 5: Solve for x
   x = 65,184,367.47/8,123.37
6. Step 6: Final answer
   x = 8,024.30