Finding the Fourth Proportional to 165,308.50, 228,126.54 and 89,857

Step by Step Solution

1. Step 1: Write the proportion equation
   165,308.50 : 228,126.54 = 89,857 : x
2. Step 2: Convert to fraction form
   165,308.50/228,126.54 = 89,857/x
3. Step 3: Cross multiply
   165,308.50x = 228,126.54 × 89,857
4. Step 4: Simplify right side
   165,308.50x = 20,498,766,504.78
5. Step 5: Solve for x
   x = 20,498,766,504.78/165,308.50
6. Step 6: Final answer
   x = 124,003.10