Finding the Fourth Proportional to 308,096.76, 461,947.29 and 128,306.82

Step by Step Solution

1. Step 1: Write the proportion equation
   308,096.76 : 461,947.29 = 128,306.82 : x
2. Step 2: Convert to fraction form
   308,096.76/461,947.29 = 128,306.82/x
3. Step 3: Cross multiply
   308,096.76x = 461,947.29 × 128,306.82
4. Step 4: Simplify right side
   308,096.76x = 59,270,987,787.52
5. Step 5: Solve for x
   x = 59,270,987,787.52/308,096.76
6. Step 6: Final answer
   x = 192,377.84