Finding the Fourth Proportional to 123,004.70, 169,770.03 and 72,028.70

Step by Step Solution

1. Step 1: Write the proportion equation
   123,004.70 : 169,770.03 = 72,028.70 : x
2. Step 2: Convert to fraction form
   123,004.70/169,770.03 = 72,028.70/x
3. Step 3: Cross multiply
   123,004.70x = 169,770.03 × 72,028.70
4. Step 4: Simplify right side
   123,004.70x = 12,228,314,559.86
5. Step 5: Solve for x
   x = 12,228,314,559.86/123,004.70
6. Step 6: Final answer
   x = 99,413.39