Finding the Fourth Proportional to 140,727.85, 194,234.56 and 89,728.83

Step by Step Solution

1. Step 1: Write the proportion equation
   140,727.85 : 194,234.56 = 89,728.83 : x
2. Step 2: Convert to fraction form
   140,727.85/194,234.56 = 89,728.83/x
3. Step 3: Cross multiply
   140,727.85x = 194,234.56 × 89,728.83
4. Step 4: Simplify right side
   140,727.85x = 17,428,439,590.04
5. Step 5: Solve for x
   x = 17,428,439,590.04/140,727.85
6. Step 6: Final answer
   x = 123,845.00