Finding the Fourth Proportional to 30,399.89, 41,952.56 and 19,069.87

Step by Step Solution

1. Step 1: Write the proportion equation
   30,399.89 : 41,952.56 = 19,069.87 : x
2. Step 2: Convert to fraction form
   30,399.89/41,952.56 = 19,069.87/x
3. Step 3: Cross multiply
   30,399.89x = 41,952.56 × 19,069.87
4. Step 4: Simplify right side
   30,399.89x = 800,029,808.16
5. Step 5: Solve for x
   x = 800,029,808.16/30,399.89
6. Step 6: Final answer
   x = 26,316.86