Finding the Fourth Proportional to 19,112.53, 28,672.77 and 5,786.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,112.53 : 28,672.77 = 5,786.27 : x
2. Step 2: Convert to fraction form
   19,112.53/28,672.77 = 5,786.27/x
3. Step 3: Cross multiply
   19,112.53x = 28,672.77 × 5,786.27
4. Step 4: Simplify right side
   19,112.53x = 165,908,269.49
5. Step 5: Solve for x
   x = 165,908,269.49/19,112.53
6. Step 6: Final answer
   x = 8,680.60