Finding the Fourth Proportional to 165,906.76, 228,956.34 and 90,456.52

Step by Step Solution

1. Step 1: Write the proportion equation
   165,906.76 : 228,956.34 = 90,456.52 : x
2. Step 2: Convert to fraction form
   165,906.76/228,956.34 = 90,456.52/x
3. Step 3: Cross multiply
   165,906.76x = 228,956.34 × 90,456.52
4. Step 4: Simplify right side
   165,906.76x = 20,710,593,748.34
5. Step 5: Solve for x
   x = 20,710,593,748.34/165,906.76
6. Step 6: Final answer
   x = 124,832.73