Finding the Fourth Proportional to 30,389.83, 41,936.86 and 19,065.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,389.83 : 41,936.86 = 19,065.42 : x
2. Step 2: Convert to fraction form
   30,389.83/41,936.86 = 19,065.42/x
3. Step 3: Cross multiply
   30,389.83x = 41,936.86 × 19,065.42
4. Step 4: Simplify right side
   30,389.83x = 799,543,849.38
5. Step 5: Solve for x
   x = 799,543,849.38/30,389.83
6. Step 6: Final answer
   x = 26,309.59