Finding the Fourth Proportional to 258,100.38, 387,131.42 and 108,334.62

Step by Step Solution

1. Step 1: Write the proportion equation
   258,100.38 : 387,131.42 = 108,334.62 : x
2. Step 2: Convert to fraction form
   258,100.38/387,131.42 = 108,334.62/x
3. Step 3: Cross multiply
   258,100.38x = 387,131.42 × 108,334.62
4. Step 4: Simplify right side
   258,100.38x = 41,939,734,734.09
5. Step 5: Solve for x
   x = 41,939,734,734.09/258,100.38
6. Step 6: Final answer
   x = 162,493.89