Finding the Fourth Proportional to 7,106.72, 9,807.76 and 3,962.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,106.72 : 9,807.76 = 3,962.88 : x
2. Step 2: Convert to fraction form
   7,106.72/9,807.76 = 3,962.88/x
3. Step 3: Cross multiply
   7,106.72x = 9,807.76 × 3,962.88
4. Step 4: Simplify right side
   7,106.72x = 38,866,975.95
5. Step 5: Solve for x
   x = 38,866,975.95/7,106.72
6. Step 6: Final answer
   x = 5,469.05