Finding the Fourth Proportional to 8,680.24, 13,017.78 and 3,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,680.24 : 13,017.78 = 3,748.72 : x
2. Step 2: Convert to fraction form
   8,680.24/13,017.78 = 3,748.72/x
3. Step 3: Cross multiply
   8,680.24x = 13,017.78 × 3,748.72
4. Step 4: Simplify right side
   8,680.24x = 48,800,012.24
5. Step 5: Solve for x
   x = 48,800,012.24/8,680.24
6. Step 6: Final answer
   x = 5,621.97