Finding the Fourth Proportional to 5,756.04, 7,946.64 and 3,870.36

Step by Step Solution

1. Step 1: Write the proportion equation
   5,756.04 : 7,946.64 = 3,870.36 : x
2. Step 2: Convert to fraction form
   5,756.04/7,946.64 = 3,870.36/x
3. Step 3: Cross multiply
   5,756.04x = 7,946.64 × 3,870.36
4. Step 4: Simplify right side
   5,756.04x = 30,756,357.59
5. Step 5: Solve for x
   x = 30,756,357.59/5,756.04
6. Step 6: Final answer
   x = 5,343.32