Finding the Fourth Proportional to 105,603.56, 158,405.55 and 25,641.19

Step by Step Solution

1. Step 1: Write the proportion equation
   105,603.56 : 158,405.55 = 25,641.19 : x
2. Step 2: Convert to fraction form
   105,603.56/158,405.55 = 25,641.19/x
3. Step 3: Cross multiply
   105,603.56x = 158,405.55 × 25,641.19
4. Step 4: Simplify right side
   105,603.56x = 4,061,707,136.52
5. Step 5: Solve for x
   x = 4,061,707,136.52/105,603.56
6. Step 6: Final answer
   x = 38,461.84