Finding the Fourth Proportional to 190,306.82, 285,265.83 and 123,880.34

Step by Step Solution

1. Step 1: Write the proportion equation
   190,306.82 : 285,265.83 = 123,880.34 : x
2. Step 2: Convert to fraction form
   190,306.82/285,265.83 = 123,880.34/x
3. Step 3: Cross multiply
   190,306.82x = 285,265.83 × 123,880.34
4. Step 4: Simplify right side
   190,306.82x = 35,338,828,010.78
5. Step 5: Solve for x
   x = 35,338,828,010.78/190,306.82
6. Step 6: Final answer
   x = 185,693.97