Finding the Fourth Proportional to 164,619, 227,174.31 and 89,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,619 : 227,174.31 = 89,167.50 : x
2. Step 2: Convert to fraction form
   164,619/227,174.31 = 89,167.50/x
3. Step 3: Cross multiply
   164,619x = 227,174.31 × 89,167.50
4. Step 4: Simplify right side
   164,619x = 20,256,565,286.93
5. Step 5: Solve for x
   x = 20,256,565,286.93/164,619
6. Step 6: Final answer
   x = 123,051.20