Finding the Fourth Proportional to 10,311.62, 15,466.62 and 3,648.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,311.62 : 15,466.62 = 3,648.78 : x
2. Step 2: Convert to fraction form
   10,311.62/15,466.62 = 3,648.78/x
3. Step 3: Cross multiply
   10,311.62x = 15,466.62 × 3,648.78
4. Step 4: Simplify right side
   10,311.62x = 56,434,293.72
5. Step 5: Solve for x
   x = 56,434,293.72/10,311.62
6. Step 6: Final answer
   x = 5,472.89