Finding the Fourth Proportional to 159,107.25, 219,580.29 and 91,145.82

Step by Step Solution

1. Step 1: Write the proportion equation
   159,107.25 : 219,580.29 = 91,145.82 : x
2. Step 2: Convert to fraction form
   159,107.25/219,580.29 = 91,145.82/x
3. Step 3: Cross multiply
   159,107.25x = 219,580.29 × 91,145.82
4. Step 4: Simplify right side
   159,107.25x = 20,013,825,587.89
5. Step 5: Solve for x
   x = 20,013,825,587.89/159,107.25
6. Step 6: Final answer
   x = 125,788.27