Finding the Fourth Proportional to 7,794.56, 10,756.50 and 4,257.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,794.56 : 10,756.50 = 4,257.78 : x
2. Step 2: Convert to fraction form
   7,794.56/10,756.50 = 4,257.78/x
3. Step 3: Cross multiply
   7,794.56x = 10,756.50 × 4,257.78
4. Step 4: Simplify right side
   7,794.56x = 45,798,754.27
5. Step 5: Solve for x
   x = 45,798,754.27/7,794.56
6. Step 6: Final answer
   x = 5,875.73