Finding the Fourth Proportional to 6,078.00, 8,385.37 and 4,085.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.00 : 8,385.37 = 4,085.40 : x
2. Step 2: Convert to fraction form
   6,078.00/8,385.37 = 4,085.40/x
3. Step 3: Cross multiply
   6,078.00x = 8,385.37 × 4,085.40
4. Step 4: Simplify right side
   6,078.00x = 34,257,569.37
5. Step 5: Solve for x
   x = 34,257,569.37/6,078.00
6. Step 6: Final answer
   x = 5,636.33