Finding the Fourth Proportional to 166,429.72, 229,673 and 89,948.60

Step by Step Solution

1. Step 1: Write the proportion equation
   166,429.72 : 229,673 = 89,948.60 : x
2. Step 2: Convert to fraction form
   166,429.72/229,673 = 89,948.60/x
3. Step 3: Cross multiply
   166,429.72x = 229,673 × 89,948.60
4. Step 4: Simplify right side
   166,429.72x = 20,658,764,807.80
5. Step 5: Solve for x
   x = 20,658,764,807.80/166,429.72
6. Step 6: Final answer
   x = 124,129.06