Finding the Fourth Proportional to 30,626, 42,267.12 and 19,448

Step by Step Solution

1. Step 1: Write the proportion equation
   30,626 : 42,267.12 = 19,448 : x
2. Step 2: Convert to fraction form
   30,626/42,267.12 = 19,448/x
3. Step 3: Cross multiply
   30,626x = 42,267.12 × 19,448
4. Step 4: Simplify right side
   30,626x = 822,010,949.76
5. Step 5: Solve for x
   x = 822,010,949.76/30,626
6. Step 6: Final answer
   x = 26,840.30