Finding the Fourth Proportional to 165,687.89, 228,635.69 and 93,086.78

Step by Step Solution

1. Step 1: Write the proportion equation
   165,687.89 : 228,635.69 = 93,086.78 : x
2. Step 2: Convert to fraction form
   165,687.89/228,635.69 = 93,086.78/x
3. Step 3: Cross multiply
   165,687.89x = 228,635.69 × 93,086.78
4. Step 4: Simplify right side
   165,687.89x = 21,282,958,566.57
5. Step 5: Solve for x
   x = 21,282,958,566.57/165,687.89
6. Step 6: Final answer
   x = 128,452.11