Finding the Fourth Proportional to 320,456.07, 480,685.14 and 120,722.82

Step by Step Solution

1. Step 1: Write the proportion equation
   320,456.07 : 480,685.14 = 120,722.82 : x
2. Step 2: Convert to fraction form
   320,456.07/480,685.14 = 120,722.82/x
3. Step 3: Cross multiply
   320,456.07x = 480,685.14 × 120,722.82
4. Step 4: Simplify right side
   320,456.07x = 58,029,665,632.89
5. Step 5: Solve for x
   x = 58,029,665,632.89/320,456.07
6. Step 6: Final answer
   x = 181,084.62