Finding the Fourth Proportional to 8,216.33, 12,305.94 and 5,762.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.33 : 12,305.94 = 5,762.12 : x
2. Step 2: Convert to fraction form
   8,216.33/12,305.94 = 5,762.12/x
3. Step 3: Cross multiply
   8,216.33x = 12,305.94 × 5,762.12
4. Step 4: Simplify right side
   8,216.33x = 70,908,241.46
5. Step 5: Solve for x
   x = 70,908,241.46/8,216.33
6. Step 6: Final answer
   x = 8,630.17