Finding the Fourth Proportional to 105,414.75, 158,144.00 and 43,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,414.75 : 158,144.00 = 43,085.25 : x
2. Step 2: Convert to fraction form
   105,414.75/158,144.00 = 43,085.25/x
3. Step 3: Cross multiply
   105,414.75x = 158,144.00 × 43,085.25
4. Step 4: Simplify right side
   105,414.75x = 6,813,673,560.57
5. Step 5: Solve for x
   x = 6,813,673,560.57/105,414.75
6. Step 6: Final answer
   x = 64,636.81