Finding the Fourth Proportional to 165,196.60, 227,971.58 and 89,745.16

Step by Step Solution

1. Step 1: Write the proportion equation
   165,196.60 : 227,971.58 = 89,745.16 : x
2. Step 2: Convert to fraction form
   165,196.60/227,971.58 = 89,745.16/x
3. Step 3: Cross multiply
   165,196.60x = 227,971.58 × 89,745.16
4. Step 4: Simplify right side
   165,196.60x = 20,459,345,922.55
5. Step 5: Solve for x
   x = 20,459,345,922.55/165,196.60
6. Step 6: Final answer
   x = 123,848.47