Finding the Fourth Proportional to 166,472.22, 229,731.67 and 91,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   166,472.22 : 229,731.67 = 91,020.72 : x
2. Step 2: Convert to fraction form
   166,472.22/229,731.67 = 91,020.72/x
3. Step 3: Cross multiply
   166,472.22x = 229,731.67 × 91,020.72
4. Step 4: Simplify right side
   166,472.22x = 20,910,342,010.20
5. Step 5: Solve for x
   x = 20,910,342,010.20/166,472.22
6. Step 6: Final answer
   x = 125,608.60