Finding the Fourth Proportional to 164,509.34, 227,018.71 and 91,912.79

Step by Step Solution

1. Step 1: Write the proportion equation
   164,509.34 : 227,018.71 = 91,912.79 : x
2. Step 2: Convert to fraction form
   164,509.34/227,018.71 = 91,912.79/x
3. Step 3: Cross multiply
   164,509.34x = 227,018.71 × 91,912.79
4. Step 4: Simplify right side
   164,509.34x = 20,865,923,018.30
5. Step 5: Solve for x
   x = 20,865,923,018.30/164,509.34
6. Step 6: Final answer
   x = 126,837.32