Finding the Fourth Proportional to 298,805.31, 412,340.90 and 162,836.51

Step by Step Solution

1. Step 1: Write the proportion equation
   298,805.31 : 412,340.90 = 162,836.51 : x
2. Step 2: Convert to fraction form
   298,805.31/412,340.90 = 162,836.51/x
3. Step 3: Cross multiply
   298,805.31x = 412,340.90 × 162,836.51
4. Step 4: Simplify right side
   298,805.31x = 67,144,150,210.37
5. Step 5: Solve for x
   x = 67,144,150,210.37/298,805.31
6. Step 6: Final answer
   x = 224,708.69