Finding the Fourth Proportional to 5,492.72, 7,577.33 and 5,280.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,492.72 : 7,577.33 = 5,280.54 : x
2. Step 2: Convert to fraction form
   5,492.72/7,577.33 = 5,280.54/x
3. Step 3: Cross multiply
   5,492.72x = 7,577.33 × 5,280.54
4. Step 4: Simplify right side
   5,492.72x = 40,012,367.76
5. Step 5: Solve for x
   x = 40,012,367.76/5,492.72
6. Step 6: Final answer
   x = 7,284.62