Finding the Fourth Proportional to 151,570.72, 227,083.68 and 89,207.20

Step by Step Solution

1. Step 1: Write the proportion equation
   151,570.72 : 227,083.68 = 89,207.20 : x
2. Step 2: Convert to fraction form
   151,570.72/227,083.68 = 89,207.20/x
3. Step 3: Cross multiply
   151,570.72x = 227,083.68 × 89,207.20
4. Step 4: Simplify right side
   151,570.72x = 20,257,499,258.50
5. Step 5: Solve for x
   x = 20,257,499,258.50/151,570.72
6. Step 6: Final answer
   x = 133,650.48