Finding the Fourth Proportional to 166,061.38, 229,167.36 and 90,609.88

Step by Step Solution

1. Step 1: Write the proportion equation
   166,061.38 : 229,167.36 = 90,609.88 : x
2. Step 2: Convert to fraction form
   166,061.38/229,167.36 = 90,609.88/x
3. Step 3: Cross multiply
   166,061.38x = 229,167.36 × 90,609.88
4. Step 4: Simplify right side
   166,061.38x = 20,764,826,989.52
5. Step 5: Solve for x
   x = 20,764,826,989.52/166,061.38
6. Step 6: Final answer
   x = 125,043.08