Finding the Fourth Proportional to 6,081.91, 8,391.59 and 4,192.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,081.91 : 8,391.59 = 4,192.89 : x
2. Step 2: Convert to fraction form
   6,081.91/8,391.59 = 4,192.89/x
3. Step 3: Cross multiply
   6,081.91x = 8,391.59 × 4,192.89
4. Step 4: Simplify right side
   6,081.91x = 35,184,994.79
5. Step 5: Solve for x
   x = 35,184,994.79/6,081.91
6. Step 6: Final answer
   x = 5,785.19