Finding the Fourth Proportional to 6,271.28, 8,654.31 and 3,476.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,271.28 : 8,654.31 = 3,476.78 : x
2. Step 2: Convert to fraction form
   6,271.28/8,654.31 = 3,476.78/x
3. Step 3: Cross multiply
   6,271.28x = 8,654.31 × 3,476.78
4. Step 4: Simplify right side
   6,271.28x = 30,089,088.65
5. Step 5: Solve for x
   x = 30,089,088.65/6,271.28
6. Step 6: Final answer
   x = 4,797.92