Finding the Fourth Proportional to 154,109.49, 231,321.39 and 83,029.15

Step by Step Solution

1. Step 1: Write the proportion equation
   154,109.49 : 231,321.39 = 83,029.15 : x
2. Step 2: Convert to fraction form
   154,109.49/231,321.39 = 83,029.15/x
3. Step 3: Cross multiply
   154,109.49x = 231,321.39 × 83,029.15
4. Step 4: Simplify right side
   154,109.49x = 19,206,418,388.52
5. Step 5: Solve for x
   x = 19,206,418,388.52/154,109.49
6. Step 6: Final answer
   x = 124,628.39