Finding the Fourth Proportional to 166,923.72, 230,354.82 and 91,472.22

Step by Step Solution

1. Step 1: Write the proportion equation
   166,923.72 : 230,354.82 = 91,472.22 : x
2. Step 2: Convert to fraction form
   166,923.72/230,354.82 = 91,472.22/x
3. Step 3: Cross multiply
   166,923.72x = 230,354.82 × 91,472.22
4. Step 4: Simplify right side
   166,923.72x = 21,071,066,773.10
5. Step 5: Solve for x
   x = 21,071,066,773.10/166,923.72
6. Step 6: Final answer
   x = 126,231.71