Finding the Fourth Proportional to 5,116.76, 7,061.76 and 2,878.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.76 : 7,061.76 = 2,878.73 : x
2. Step 2: Convert to fraction form
   5,116.76/7,061.76 = 2,878.73/x
3. Step 3: Cross multiply
   5,116.76x = 7,061.76 × 2,878.73
4. Step 4: Simplify right side
   5,116.76x = 20,328,885.97
5. Step 5: Solve for x
   x = 20,328,885.97/5,116.76
6. Step 6: Final answer
   x = 3,973.00