Finding the Fourth Proportional to 5,780.25, 7,976.69 and 3,127.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,780.25 : 7,976.69 = 3,127.61 : x
2. Step 2: Convert to fraction form
   5,780.25/7,976.69 = 3,127.61/x
3. Step 3: Cross multiply
   5,780.25x = 7,976.69 × 3,127.61
4. Step 4: Simplify right side
   5,780.25x = 24,947,919.89
5. Step 5: Solve for x
   x = 24,947,919.89/5,780.25
6. Step 6: Final answer
   x = 4,316.06