Finding the Fourth Proportional to 6,870.69, 9,481.59 and 4,219.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.69 : 9,481.59 = 4,219.83 : x
2. Step 2: Convert to fraction form
   6,870.69/9,481.59 = 4,219.83/x
3. Step 3: Cross multiply
   6,870.69x = 9,481.59 × 4,219.83
4. Step 4: Simplify right side
   6,870.69x = 40,010,697.93
5. Step 5: Solve for x
   x = 40,010,697.93/6,870.69
6. Step 6: Final answer
   x = 5,823.39