Finding the Fourth Proportional to 140,640.89, 194,036.16 and 80,167.91

Step by Step Solution

1. Step 1: Write the proportion equation
   140,640.89 : 194,036.16 = 80,167.91 : x
2. Step 2: Convert to fraction form
   140,640.89/194,036.16 = 80,167.91/x
3. Step 3: Cross multiply
   140,640.89x = 194,036.16 × 80,167.91
4. Step 4: Simplify right side
   140,640.89x = 15,555,472,040.61
5. Step 5: Solve for x
   x = 15,555,472,040.61/140,640.89
6. Step 6: Final answer
   x = 110,604.20