Finding the Fourth Proportional to 8,216.59, 12,315.84 and 3,830.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.59 : 12,315.84 = 3,830.44 : x
2. Step 2: Convert to fraction form
   8,216.59/12,315.84 = 3,830.44/x
3. Step 3: Cross multiply
   8,216.59x = 12,315.84 × 3,830.44
4. Step 4: Simplify right side
   8,216.59x = 47,175,086.17
5. Step 5: Solve for x
   x = 47,175,086.17/8,216.59
6. Step 6: Final answer
   x = 5,741.44