Finding the Fourth Proportional to 151,584.72, 227,104.64 and 89,221.20

Step by Step Solution

1. Step 1: Write the proportion equation
   151,584.72 : 227,104.64 = 89,221.20 : x
2. Step 2: Convert to fraction form
   151,584.72/227,104.64 = 89,221.20/x
3. Step 3: Cross multiply
   151,584.72x = 227,104.64 × 89,221.20
4. Step 4: Simplify right side
   151,584.72x = 20,262,548,506.37
5. Step 5: Solve for x
   x = 20,262,548,506.37/151,584.72
6. Step 6: Final answer
   x = 133,671.44