Finding the Fourth Proportional to 6,085.56, 8,390.34 and 4,091.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,085.56 : 8,390.34 = 4,091.88 : x
2. Step 2: Convert to fraction form
   6,085.56/8,390.34 = 4,091.88/x
3. Step 3: Cross multiply
   6,085.56x = 8,390.34 × 4,091.88
4. Step 4: Simplify right side
   6,085.56x = 34,332,264.44
5. Step 5: Solve for x
   x = 34,332,264.44/6,085.56
6. Step 6: Final answer
   x = 5,641.59