Finding the Fourth Proportional to 5,418.97, 7,478.18 and 3,061.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,418.97 : 7,478.18 = 3,061.27 : x
2. Step 2: Convert to fraction form
   5,418.97/7,478.18 = 3,061.27/x
3. Step 3: Cross multiply
   5,418.97x = 7,478.18 × 3,061.27
4. Step 4: Simplify right side
   5,418.97x = 22,892,728.09
5. Step 5: Solve for x
   x = 22,892,728.09/5,418.97
6. Step 6: Final answer
   x = 4,224.55