Finding the Fourth Proportional to 82,269.99, 123,404.98 and 19,940.49

Step by Step Solution

1. Step 1: Write the proportion equation
   82,269.99 : 123,404.98 = 19,940.49 : x
2. Step 2: Convert to fraction form
   82,269.99/123,404.98 = 19,940.49/x
3. Step 3: Cross multiply
   82,269.99x = 123,404.98 × 19,940.49
4. Step 4: Simplify right side
   82,269.99x = 2,460,755,769.64
5. Step 5: Solve for x
   x = 2,460,755,769.64/82,269.99
6. Step 6: Final answer
   x = 29,910.73