Finding the Fourth Proportional to 42,894.39, 64,270.46 and 30,352.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,894.39 : 64,270.46 = 30,352.25 : x
2. Step 2: Convert to fraction form
   42,894.39/64,270.46 = 30,352.25/x
3. Step 3: Cross multiply
   42,894.39x = 64,270.46 × 30,352.25
4. Step 4: Simplify right side
   42,894.39x = 1,950,752,596.42
5. Step 5: Solve for x
   x = 1,950,752,596.42/42,894.39
6. Step 6: Final answer
   x = 45,478.04