Finding the Fourth Proportional to 105,982.48, 146,155.58 and 69,619.74

Step by Step Solution

1. Step 1: Write the proportion equation
   105,982.48 : 146,155.58 = 69,619.74 : x
2. Step 2: Convert to fraction form
   105,982.48/146,155.58 = 69,619.74/x
3. Step 3: Cross multiply
   105,982.48x = 146,155.58 × 69,619.74
4. Step 4: Simplify right side
   105,982.48x = 10,175,313,479.15
5. Step 5: Solve for x
   x = 10,175,313,479.15/105,982.48
6. Step 6: Final answer
   x = 96,009.39