Finding the Fourth Proportional to 105,995.76, 146,294.82 and 70,187.28

Step by Step Solution

1. Step 1: Write the proportion equation
   105,995.76 : 146,294.82 = 70,187.28 : x
2. Step 2: Convert to fraction form
   105,995.76/146,294.82 = 70,187.28/x
3. Step 3: Cross multiply
   105,995.76x = 146,294.82 × 70,187.28
4. Step 4: Simplify right side
   105,995.76x = 10,268,035,493.89
5. Step 5: Solve for x
   x = 10,268,035,493.89/105,995.76
6. Step 6: Final answer
   x = 96,872.13