Finding the Fourth Proportional to 6,080.63, 8,391.24 and 3,689.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,080.63 : 8,391.24 = 3,689.78 : x
2. Step 2: Convert to fraction form
   6,080.63/8,391.24 = 3,689.78/x
3. Step 3: Cross multiply
   6,080.63x = 8,391.24 × 3,689.78
4. Step 4: Simplify right side
   6,080.63x = 30,961,787.57
5. Step 5: Solve for x
   x = 30,961,787.57/6,080.63
6. Step 6: Final answer
   x = 5,091.88