Finding the Fourth Proportional to 6,015.76, 8,302.17 and 3,919.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,015.76 : 8,302.17 = 3,919.89 : x
2. Step 2: Convert to fraction form
   6,015.76/8,302.17 = 3,919.89/x
3. Step 3: Cross multiply
   6,015.76x = 8,302.17 × 3,919.89
4. Step 4: Simplify right side
   6,015.76x = 32,543,593.16
5. Step 5: Solve for x
   x = 32,543,593.16/6,015.76
6. Step 6: Final answer
   x = 5,409.72