Finding the Fourth Proportional to 6,055.89, 8,351.58 and 3,929.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,055.89 : 8,351.58 = 3,929.21 : x
2. Step 2: Convert to fraction form
   6,055.89/8,351.58 = 3,929.21/x
3. Step 3: Cross multiply
   6,055.89x = 8,351.58 × 3,929.21
4. Step 4: Simplify right side
   6,055.89x = 32,815,069.89
5. Step 5: Solve for x
   x = 32,815,069.89/6,055.89
6. Step 6: Final answer
   x = 5,418.70