Finding the Fourth Proportional to 7,238.04, 9,985.32 and 5,556.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,238.04 : 9,985.32 = 5,556.48 : x
2. Step 2: Convert to fraction form
   7,238.04/9,985.32 = 5,556.48/x
3. Step 3: Cross multiply
   7,238.04x = 9,985.32 × 5,556.48
4. Step 4: Simplify right side
   7,238.04x = 55,483,230.87
5. Step 5: Solve for x
   x = 55,483,230.87/7,238.04
6. Step 6: Final answer
   x = 7,665.50