Finding the Fourth Proportional to 166,455, 229,707.90 and 91,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,455 : 229,707.90 = 91,003.50 : x
2. Step 2: Convert to fraction form
   166,455/229,707.90 = 91,003.50/x
3. Step 3: Cross multiply
   166,455x = 229,707.90 × 91,003.50
4. Step 4: Simplify right side
   166,455x = 20,904,222,877.65
5. Step 5: Solve for x
   x = 20,904,222,877.65/166,455
6. Step 6: Final answer
   x = 125,584.83