Finding the Fourth Proportional to 5,116.73, 7,061.24 and 2,878.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.73 : 7,061.24 = 2,878.49 : x
2. Step 2: Convert to fraction form
   5,116.73/7,061.24 = 2,878.49/x
3. Step 3: Cross multiply
   5,116.73x = 7,061.24 × 2,878.49
4. Step 4: Simplify right side
   5,116.73x = 20,325,733.58
5. Step 5: Solve for x
   x = 20,325,733.58/5,116.73
6. Step 6: Final answer
   x = 3,972.41