Finding the Fourth Proportional to 6,101.89, 8,420.61 and 3,307.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,101.89 : 8,420.61 = 3,307.39 : x
2. Step 2: Convert to fraction form
   6,101.89/8,420.61 = 3,307.39/x
3. Step 3: Cross multiply
   6,101.89x = 8,420.61 × 3,307.39
4. Step 4: Simplify right side
   6,101.89x = 27,850,241.31
5. Step 5: Solve for x
   x = 27,850,241.31/6,101.89
6. Step 6: Final answer
   x = 4,564.20