Finding the Fourth Proportional to 224,006.49, 309,128.85 and 123,404.49

Step by Step Solution

1. Step 1: Write the proportion equation
   224,006.49 : 309,128.85 = 123,404.49 : x
2. Step 2: Convert to fraction form
   224,006.49/309,128.85 = 123,404.49/x
3. Step 3: Cross multiply
   224,006.49x = 309,128.85 × 123,404.49
4. Step 4: Simplify right side
   224,006.49x = 38,147,888,078.54
5. Step 5: Solve for x
   x = 38,147,888,078.54/224,006.49
6. Step 6: Final answer
   x = 170,298.14