Finding the Fourth Proportional to 104,124.88, 143,584.94 and 89,067.39

Step by Step Solution

1. Step 1: Write the proportion equation
   104,124.88 : 143,584.94 = 89,067.39 : x
2. Step 2: Convert to fraction form
   104,124.88/143,584.94 = 89,067.39/x
3. Step 3: Cross multiply
   104,124.88x = 143,584.94 × 89,067.39
4. Step 4: Simplify right side
   104,124.88x = 12,788,735,032.33
5. Step 5: Solve for x
   x = 12,788,735,032.33/104,124.88
6. Step 6: Final answer
   x = 122,821.12