Finding the Fourth Proportional to 6,071.80, 8,379.57 and 3,419.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,071.80 : 8,379.57 = 3,419.05 : x
2. Step 2: Convert to fraction form
   6,071.80/8,379.57 = 3,419.05/x
3. Step 3: Cross multiply
   6,071.80x = 8,379.57 × 3,419.05
4. Step 4: Simplify right side
   6,071.80x = 28,650,168.81
5. Step 5: Solve for x
   x = 28,650,168.81/6,071.80
6. Step 6: Final answer
   x = 4,718.56