Finding the Fourth Proportional to 72,949.01, 109,413.78 and 20,363.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,949.01 : 109,413.78 = 20,363.81 : x
2. Step 2: Convert to fraction form
   72,949.01/109,413.78 = 20,363.81/x
3. Step 3: Cross multiply
   72,949.01x = 109,413.78 × 20,363.81
4. Step 4: Simplify right side
   72,949.01x = 2,228,081,427.30
5. Step 5: Solve for x
   x = 2,228,081,427.30/72,949.01
6. Step 6: Final answer
   x = 30,543.00