Finding the Fourth Proportional to 6,157.76, 8,499.02 and 3,919.19

Step by Step Solution

1. Step 1: Write the proportion equation
   6,157.76 : 8,499.02 = 3,919.19 : x
2. Step 2: Convert to fraction form
   6,157.76/8,499.02 = 3,919.19/x
3. Step 3: Cross multiply
   6,157.76x = 8,499.02 × 3,919.19
4. Step 4: Simplify right side
   6,157.76x = 33,309,212.10
5. Step 5: Solve for x
   x = 33,309,212.10/6,157.76
6. Step 6: Final answer
   x = 5,409.31