Finding the Fourth Proportional to 166,905, 230,327.46 and 90,422.37

Step by Step Solution

1. Step 1: Write the proportion equation
   166,905 : 230,327.46 = 90,422.37 : x
2. Step 2: Convert to fraction form
   166,905/230,327.46 = 90,422.37/x
3. Step 3: Cross multiply
   166,905x = 230,327.46 × 90,422.37
4. Step 4: Simplify right side
   166,905x = 20,826,754,809.28
5. Step 5: Solve for x
   x = 20,826,754,809.28/166,905
6. Step 6: Final answer
   x = 124,782.09