Finding the Fourth Proportional to 105,878.16, 158,774.85 and 46,671.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,878.16 : 158,774.85 = 46,671.75 : x
2. Step 2: Convert to fraction form
   105,878.16/158,774.85 = 46,671.75/x
3. Step 3: Cross multiply
   105,878.16x = 158,774.85 × 46,671.75
4. Step 4: Simplify right side
   105,878.16x = 7,410,300,105.49
5. Step 5: Solve for x
   x = 7,410,300,105.49/105,878.16
6. Step 6: Final answer
   x = 69,988.94