Finding the Fourth Proportional to 12,719.58, 19,087.82 and 5,229.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,719.58 : 19,087.82 = 5,229.27 : x
2. Step 2: Convert to fraction form
   12,719.58/19,087.82 = 5,229.27/x
3. Step 3: Cross multiply
   12,719.58x = 19,087.82 × 5,229.27
4. Step 4: Simplify right side
   12,719.58x = 99,815,338.35
5. Step 5: Solve for x
   x = 99,815,338.35/12,719.58
6. Step 6: Final answer
   x = 7,847.38