Finding the Fourth Proportional to 6,159.25, 8,498.58 and 3,640.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,159.25 : 8,498.58 = 3,640.78 : x
2. Step 2: Convert to fraction form
   6,159.25/8,498.58 = 3,640.78/x
3. Step 3: Cross multiply
   6,159.25x = 8,498.58 × 3,640.78
4. Step 4: Simplify right side
   6,159.25x = 30,941,460.09
5. Step 5: Solve for x
   x = 30,941,460.09/6,159.25
6. Step 6: Final answer
   x = 5,023.58