Finding the Fourth Proportional to 105,738.30, 158,643.90 and 46,616.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,738.30 : 158,643.90 = 46,616.40 : x
2. Step 2: Convert to fraction form
   105,738.30/158,643.90 = 46,616.40/x
3. Step 3: Cross multiply
   105,738.30x = 158,643.90 × 46,616.40
4. Step 4: Simplify right side
   105,738.30x = 7,395,407,499.96
5. Step 5: Solve for x
   x = 7,395,407,499.96/105,738.30
6. Step 6: Final answer
   x = 69,940.67