Finding the Fourth Proportional to 165,286.50, 228,096.18 and 89,835

Step by Step Solution

1. Step 1: Write the proportion equation
   165,286.50 : 228,096.18 = 89,835 : x
2. Step 2: Convert to fraction form
   165,286.50/228,096.18 = 89,835/x
3. Step 3: Cross multiply
   165,286.50x = 228,096.18 × 89,835
4. Step 4: Simplify right side
   165,286.50x = 20,491,020,330.30
5. Step 5: Solve for x
   x = 20,491,020,330.30/165,286.50
6. Step 6: Final answer
   x = 123,972.74