Finding the Fourth Proportional to 320,300.46, 480,288.49 and 106,992.33

Step by Step Solution

1. Step 1: Write the proportion equation
   320,300.46 : 480,288.49 = 106,992.33 : x
2. Step 2: Convert to fraction form
   320,300.46/480,288.49 = 106,992.33/x
3. Step 3: Cross multiply
   320,300.46x = 480,288.49 × 106,992.33
4. Step 4: Simplify right side
   320,300.46x = 51,387,182,548.72
5. Step 5: Solve for x
   x = 51,387,182,548.72/320,300.46
6. Step 6: Final answer
   x = 160,434.31