Finding the Fourth Proportional to 5,510.45, 7,601.22 and 3,518.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,510.45 : 7,601.22 = 3,518.78 : x
2. Step 2: Convert to fraction form
   5,510.45/7,601.22 = 3,518.78/x
3. Step 3: Cross multiply
   5,510.45x = 7,601.22 × 3,518.78
4. Step 4: Simplify right side
   5,510.45x = 26,746,982.91
5. Step 5: Solve for x
   x = 26,746,982.91/5,510.45
6. Step 6: Final answer
   x = 4,853.87