Finding the Fourth Proportional to 505,078.31, 757,084.89 and 168,028.94

Step by Step Solution

1. Step 1: Write the proportion equation
   505,078.31 : 757,084.89 = 168,028.94 : x
2. Step 2: Convert to fraction form
   505,078.31/757,084.89 = 168,028.94/x
3. Step 3: Cross multiply
   505,078.31x = 757,084.89 × 168,028.94
4. Step 4: Simplify right side
   505,078.31x = 127,212,171,556.72
5. Step 5: Solve for x
   x = 127,212,171,556.72/505,078.31
6. Step 6: Final answer
   x = 251,866.23