Finding the Fourth Proportional to 105,548.78, 158,321.75 and 25,587.43

Step by Step Solution

1. Step 1: Write the proportion equation
   105,548.78 : 158,321.75 = 25,587.43 : x
2. Step 2: Convert to fraction form
   105,548.78/158,321.75 = 25,587.43/x
3. Step 3: Cross multiply
   105,548.78x = 158,321.75 × 25,587.43
4. Step 4: Simplify right side
   105,548.78x = 4,051,047,062.42
5. Step 5: Solve for x
   x = 4,051,047,062.42/105,548.78
6. Step 6: Final answer
   x = 38,380.81