Finding the Fourth Proportional to 92,081.33, 137,308.78 and 80,882.54

Step by Step Solution

1. Step 1: Write the proportion equation
   92,081.33 : 137,308.78 = 80,882.54 : x
2. Step 2: Convert to fraction form
   92,081.33/137,308.78 = 80,882.54/x
3. Step 3: Cross multiply
   92,081.33x = 137,308.78 × 80,882.54
4. Step 4: Simplify right side
   92,081.33x = 11,105,882,890.70
5. Step 5: Solve for x
   x = 11,105,882,890.70/92,081.33
6. Step 6: Final answer
   x = 120,609.50