Finding the Fourth Proportional to 166,715.52, 230,067.41 and 90,234.61

Step by Step Solution

1. Step 1: Write the proportion equation
   166,715.52 : 230,067.41 = 90,234.61 : x
2. Step 2: Convert to fraction form
   166,715.52/230,067.41 = 90,234.61/x
3. Step 3: Cross multiply
   166,715.52x = 230,067.41 × 90,234.61
4. Step 4: Simplify right side
   166,715.52x = 20,760,041,503.42
5. Step 5: Solve for x
   x = 20,760,041,503.42/166,715.52
6. Step 6: Final answer
   x = 124,523.75