Finding the Fourth Proportional to 6,085.76, 8,395.34 and 3,931.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,085.76 : 8,395.34 = 3,931.56 : x
2. Step 2: Convert to fraction form
   6,085.76/8,395.34 = 3,931.56/x
3. Step 3: Cross multiply
   6,085.76x = 8,395.34 × 3,931.56
4. Step 4: Simplify right side
   6,085.76x = 33,006,782.93
5. Step 5: Solve for x
   x = 33,006,782.93/6,085.76
6. Step 6: Final answer
   x = 5,423.61