Finding the Fourth Proportional to 6,121.37, 8,447.32 and 3,469.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,121.37 : 8,447.32 = 3,469.63 : x
2. Step 2: Convert to fraction form
   6,121.37/8,447.32 = 3,469.63/x
3. Step 3: Cross multiply
   6,121.37x = 8,447.32 × 3,469.63
4. Step 4: Simplify right side
   6,121.37x = 29,309,074.89
5. Step 5: Solve for x
   x = 29,309,074.89/6,121.37
6. Step 6: Final answer
   x = 4,787.99