Finding the Fourth Proportional to 258,067.83, 387,105.64 and 89,593.51

Step by Step Solution

1. Step 1: Write the proportion equation
   258,067.83 : 387,105.64 = 89,593.51 : x
2. Step 2: Convert to fraction form
   258,067.83/387,105.64 = 89,593.51/x
3. Step 3: Cross multiply
   258,067.83x = 387,105.64 × 89,593.51
4. Step 4: Simplify right side
   258,067.83x = 34,682,152,060.63
5. Step 5: Solve for x
   x = 34,682,152,060.63/258,067.83
6. Step 6: Final answer
   x = 134,391.61