Finding the Fourth Proportional to 7,070.20, 9,756.42 and 3,883.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,070.20 : 9,756.42 = 3,883.55 : x
2. Step 2: Convert to fraction form
   7,070.20/9,756.42 = 3,883.55/x
3. Step 3: Cross multiply
   7,070.20x = 9,756.42 × 3,883.55
4. Step 4: Simplify right side
   7,070.20x = 37,889,544.89
5. Step 5: Solve for x
   x = 37,889,544.89/7,070.20
6. Step 6: Final answer
   x = 5,359.05