Finding the Fourth Proportional to 72,025.49, 99,383.27 and 40,194.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,025.49 : 99,383.27 = 40,194.30 : x
2. Step 2: Convert to fraction form
   72,025.49/99,383.27 = 40,194.30/x
3. Step 3: Cross multiply
   72,025.49x = 99,383.27 × 40,194.30
4. Step 4: Simplify right side
   72,025.49x = 3,994,640,768.39
5. Step 5: Solve for x
   x = 3,994,640,768.39/72,025.49
6. Step 6: Final answer
   x = 55,461.49