Finding the Fourth Proportional to 8,760.18, 13,132.46 and 3,212.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.18 : 13,132.46 = 3,212.23 : x
2. Step 2: Convert to fraction form
   8,760.18/13,132.46 = 3,212.23/x
3. Step 3: Cross multiply
   8,760.18x = 13,132.46 × 3,212.23
4. Step 4: Simplify right side
   8,760.18x = 42,184,433.09
5. Step 5: Solve for x
   x = 42,184,433.09/8,760.18
6. Step 6: Final answer
   x = 4,815.48