Finding the Fourth Proportional to 5,776.47, 7,963.79 and 3,786.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,776.47 : 7,963.79 = 3,786.30 : x
2. Step 2: Convert to fraction form
   5,776.47/7,963.79 = 3,786.30/x
3. Step 3: Cross multiply
   5,776.47x = 7,963.79 × 3,786.30
4. Step 4: Simplify right side
   5,776.47x = 30,153,279.15
5. Step 5: Solve for x
   x = 30,153,279.15/5,776.47
6. Step 6: Final answer
   x = 5,220.02