Finding the Fourth Proportional to 7,542.72, 10,408.72 and 4,185.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,542.72 : 10,408.72 = 4,185.61 : x
2. Step 2: Convert to fraction form
   7,542.72/10,408.72 = 4,185.61/x
3. Step 3: Cross multiply
   7,542.72x = 10,408.72 × 4,185.61
4. Step 4: Simplify right side
   7,542.72x = 43,566,769.55
5. Step 5: Solve for x
   x = 43,566,769.55/7,542.72
6. Step 6: Final answer
   x = 5,776.01