Finding the Fourth Proportional to 166,009.29, 229,092.33 and 90,557.25

Step by Step Solution

1. Step 1: Write the proportion equation
   166,009.29 : 229,092.33 = 90,557.25 : x
2. Step 2: Convert to fraction form
   166,009.29/229,092.33 = 90,557.25/x
3. Step 3: Cross multiply
   166,009.29x = 229,092.33 × 90,557.25
4. Step 4: Simplify right side
   166,009.29x = 20,745,971,400.89
5. Step 5: Solve for x
   x = 20,745,971,400.89/166,009.29
6. Step 6: Final answer
   x = 124,968.74