Finding the Fourth Proportional to 161,783.82, 223,262.01 and 90,162.41

Step by Step Solution

1. Step 1: Write the proportion equation
   161,783.82 : 223,262.01 = 90,162.41 : x
2. Step 2: Convert to fraction form
   161,783.82/223,262.01 = 90,162.41/x
3. Step 3: Cross multiply
   161,783.82x = 223,262.01 × 90,162.41
4. Step 4: Simplify right side
   161,783.82x = 20,129,839,766.73
5. Step 5: Solve for x
   x = 20,129,839,766.73/161,783.82
6. Step 6: Final answer
   x = 124,424.31