Finding the Fourth Proportional to 6,870.85, 9,479.09 and 4,483.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.85 : 9,479.09 = 4,483.63 : x
2. Step 2: Convert to fraction form
   6,870.85/9,479.09 = 4,483.63/x
3. Step 3: Cross multiply
   6,870.85x = 9,479.09 × 4,483.63
4. Step 4: Simplify right side
   6,870.85x = 42,500,732.30
5. Step 5: Solve for x
   x = 42,500,732.30/6,870.85
6. Step 6: Final answer
   x = 6,185.66