Finding the Fourth Proportional to 159,185.33, 219,680.39 and 91,208.69

Step by Step Solution

1. Step 1: Write the proportion equation
   159,185.33 : 219,680.39 = 91,208.69 : x
2. Step 2: Convert to fraction form
   159,185.33/219,680.39 = 91,208.69/x
3. Step 3: Cross multiply
   159,185.33x = 219,680.39 × 91,208.69
4. Step 4: Simplify right side
   159,185.33x = 20,036,760,590.59
5. Step 5: Solve for x
   x = 20,036,760,590.59/159,185.33
6. Step 6: Final answer
   x = 125,870.65