Finding the Fourth Proportional to 5,780.61, 7,981.16 and 3,794.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,780.61 : 7,981.16 = 3,794.55 : x
2. Step 2: Convert to fraction form
   5,780.61/7,981.16 = 3,794.55/x
3. Step 3: Cross multiply
   5,780.61x = 7,981.16 × 3,794.55
4. Step 4: Simplify right side
   5,780.61x = 30,284,910.68
5. Step 5: Solve for x
   x = 30,284,910.68/5,780.61
6. Step 6: Final answer
   x = 5,239.05