Finding the Fourth Proportional to 12,685.82, 19,034.19 and 5,291.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,685.82 : 19,034.19 = 5,291.73 : x
2. Step 2: Convert to fraction form
   12,685.82/19,034.19 = 5,291.73/x
3. Step 3: Cross multiply
   12,685.82x = 19,034.19 × 5,291.73
4. Step 4: Simplify right side
   12,685.82x = 100,723,794.25
5. Step 5: Solve for x
   x = 100,723,794.25/12,685.82
6. Step 6: Final answer
   x = 7,939.88