Finding the Fourth Proportional to 7,542.72, 10,409.04 and 4,185.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,542.72 : 10,409.04 = 4,185.60 : x
2. Step 2: Convert to fraction form
   7,542.72/10,409.04 = 4,185.60/x
3. Step 3: Cross multiply
   7,542.72x = 10,409.04 × 4,185.60
4. Step 4: Simplify right side
   7,542.72x = 43,568,077.82
5. Step 5: Solve for x
   x = 43,568,077.82/7,542.72
6. Step 6: Final answer
   x = 5,776.18