Finding the Fourth Proportional to 123,957.72, 185,891.58 and 67,839.30

Step by Step Solution

1. Step 1: Write the proportion equation
   123,957.72 : 185,891.58 = 67,839.30 : x
2. Step 2: Convert to fraction form
   123,957.72/185,891.58 = 67,839.30/x
3. Step 3: Cross multiply
   123,957.72x = 185,891.58 × 67,839.30
4. Step 4: Simplify right side
   123,957.72x = 12,610,754,663.09
5. Step 5: Solve for x
   x = 12,610,754,663.09/123,957.72
6. Step 6: Final answer
   x = 101,734.32