Finding the Fourth Proportional to 7,075.69, 9,763.41 and 3,931.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,075.69 : 9,763.41 = 3,931.89 : x
2. Step 2: Convert to fraction form
   7,075.69/9,763.41 = 3,931.89/x
3. Step 3: Cross multiply
   7,075.69x = 9,763.41 × 3,931.89
4. Step 4: Simplify right side
   7,075.69x = 38,388,654.14
5. Step 5: Solve for x
   x = 38,388,654.14/7,075.69
6. Step 6: Final answer
   x = 5,425.43