Finding the Fourth Proportional to 105,298.38, 158,021.37 and 60,864

Step by Step Solution

1. Step 1: Write the proportion equation
   105,298.38 : 158,021.37 = 60,864 : x
2. Step 2: Convert to fraction form
   105,298.38/158,021.37 = 60,864/x
3. Step 3: Cross multiply
   105,298.38x = 158,021.37 × 60,864
4. Step 4: Simplify right side
   105,298.38x = 9,617,812,663.68
5. Step 5: Solve for x
   x = 9,617,812,663.68/105,298.38
6. Step 6: Final answer
   x = 91,338.66