Finding the Fourth Proportional to 30,744.08, 42,410.78 and 19,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,744.08 : 42,410.78 = 19,409.50 : x
2. Step 2: Convert to fraction form
   30,744.08/42,410.78 = 19,409.50/x
3. Step 3: Cross multiply
   30,744.08x = 42,410.78 × 19,409.50
4. Step 4: Simplify right side
   30,744.08x = 823,172,034.41
5. Step 5: Solve for x
   x = 823,172,034.41/30,744.08
6. Step 6: Final answer
   x = 26,774.98