Finding the Fourth Proportional to 6,411.79, 8,848.71 and 3,759.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.79 : 8,848.71 = 3,759.31 : x
2. Step 2: Convert to fraction form
   6,411.79/8,848.71 = 3,759.31/x
3. Step 3: Cross multiply
   6,411.79x = 8,848.71 × 3,759.31
4. Step 4: Simplify right side
   6,411.79x = 33,265,043.99
5. Step 5: Solve for x
   x = 33,265,043.99/6,411.79
6. Step 6: Final answer
   x = 5,188.11