Finding the Fourth Proportional to 166,023.54, 229,112.01 and 90,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,023.54 : 229,112.01 = 90,571.50 : x
2. Step 2: Convert to fraction form
   166,023.54/229,112.01 = 90,571.50/x
3. Step 3: Cross multiply
   166,023.54x = 229,112.01 × 90,571.50
4. Step 4: Simplify right side
   166,023.54x = 20,751,018,413.72
5. Step 5: Solve for x
   x = 20,751,018,413.72/166,023.54
6. Step 6: Final answer
   x = 124,988.41