Finding the Fourth Proportional to 5,780.37, 7,976.89 and 3,127.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,780.37 : 7,976.89 = 3,127.82 : x
2. Step 2: Convert to fraction form
   5,780.37/7,976.89 = 3,127.82/x
3. Step 3: Cross multiply
   5,780.37x = 7,976.89 × 3,127.82
4. Step 4: Simplify right side
   5,780.37x = 24,950,288.20
5. Step 5: Solve for x
   x = 24,950,288.20/5,780.37
6. Step 6: Final answer
   x = 4,316.38