Finding the Fourth Proportional to 7,338.72, 10,985.04 and 3,865.44

Step by Step Solution

1. Step 1: Write the proportion equation
   7,338.72 : 10,985.04 = 3,865.44 : x
2. Step 2: Convert to fraction form
   7,338.72/10,985.04 = 3,865.44/x
3. Step 3: Cross multiply
   7,338.72x = 10,985.04 × 3,865.44
4. Step 4: Simplify right side
   7,338.72x = 42,462,013.02
5. Step 5: Solve for x
   x = 42,462,013.02/7,338.72
6. Step 6: Final answer
   x = 5,786.02