Finding the Fourth Proportional to 6,419.25, 8,859.51 and 3,768.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419.25 : 8,859.51 = 3,768.12 : x
2. Step 2: Convert to fraction form
   6,419.25/8,859.51 = 3,768.12/x
3. Step 3: Cross multiply
   6,419.25x = 8,859.51 × 3,768.12
4. Step 4: Simplify right side
   6,419.25x = 33,383,696.82
5. Step 5: Solve for x
   x = 33,383,696.82/6,419.25
6. Step 6: Final answer
   x = 5,200.56