Finding the Fourth Proportional to 165,238.31, 228,030.24 and 89,786.81

Step by Step Solution

1. Step 1: Write the proportion equation
   165,238.31 : 228,030.24 = 89,786.81 : x
2. Step 2: Convert to fraction form
   165,238.31/228,030.24 = 89,786.81/x
3. Step 3: Cross multiply
   165,238.31x = 228,030.24 × 89,786.81
4. Step 4: Simplify right side
   165,238.31x = 20,474,108,234.86
5. Step 5: Solve for x
   x = 20,474,108,234.86/165,238.31
6. Step 6: Final answer
   x = 123,906.54