Finding the Fourth Proportional to 39,150.50, 54,072.54 and 25,781.51

Step by Step Solution

1. Step 1: Write the proportion equation
   39,150.50 : 54,072.54 = 25,781.51 : x
2. Step 2: Convert to fraction form
   39,150.50/54,072.54 = 25,781.51/x
3. Step 3: Cross multiply
   39,150.50x = 54,072.54 × 25,781.51
4. Step 4: Simplify right side
   39,150.50x = 1,394,071,460.37
5. Step 5: Solve for x
   x = 1,394,071,460.37/39,150.50
6. Step 6: Final answer
   x = 35,608.02