Finding the Fourth Proportional to 8,304.51, 12,457.28 and 2,758.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,304.51 : 12,457.28 = 2,758.34 : x
2. Step 2: Convert to fraction form
   8,304.51/12,457.28 = 2,758.34/x
3. Step 3: Cross multiply
   8,304.51x = 12,457.28 × 2,758.34
4. Step 4: Simplify right side
   8,304.51x = 34,361,413.72
5. Step 5: Solve for x
   x = 34,361,413.72/8,304.51
6. Step 6: Final answer
   x = 4,137.68