Finding the Fourth Proportional to 105,958.77, 146,261.46 and 70,160.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,958.77 : 146,261.46 = 70,160.31 : x
2. Step 2: Convert to fraction form
   105,958.77/146,261.46 = 70,160.31/x
3. Step 3: Cross multiply
   105,958.77x = 146,261.46 × 70,160.31
4. Step 4: Simplify right side
   105,958.77x = 10,261,749,637.75
5. Step 5: Solve for x
   x = 10,261,749,637.75/105,958.77
6. Step 6: Final answer
   x = 96,846.63