Finding the Fourth Proportional to 162,282.98, 223,938.78 and 89,685

Step by Step Solution

1. Step 1: Write the proportion equation
   162,282.98 : 223,938.78 = 89,685 : x
2. Step 2: Convert to fraction form
   162,282.98/223,938.78 = 89,685/x
3. Step 3: Cross multiply
   162,282.98x = 223,938.78 × 89,685
4. Step 4: Simplify right side
   162,282.98x = 20,083,949,484.30
5. Step 5: Solve for x
   x = 20,083,949,484.30/162,282.98
6. Step 6: Final answer
   x = 123,758.82