Finding the Fourth Proportional to 30,630.87, 42,270.54 and 17,892.81

Step by Step Solution

1. Step 1: Write the proportion equation
   30,630.87 : 42,270.54 = 17,892.81 : x
2. Step 2: Convert to fraction form
   30,630.87/42,270.54 = 17,892.81/x
3. Step 3: Cross multiply
   30,630.87x = 42,270.54 × 17,892.81
4. Step 4: Simplify right side
   30,630.87x = 756,338,740.82
5. Step 5: Solve for x
   x = 756,338,740.82/30,630.87
6. Step 6: Final answer
   x = 24,692.04