Finding the Fourth Proportional to 105,817.68, 146,034.96 and 69,945.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,817.68 : 146,034.96 = 69,945.48 : x
2. Step 2: Convert to fraction form
   105,817.68/146,034.96 = 69,945.48/x
3. Step 3: Cross multiply
   105,817.68x = 146,034.96 × 69,945.48
4. Step 4: Simplify right side
   105,817.68x = 10,214,485,373.98
5. Step 5: Solve for x
   x = 10,214,485,373.98/105,817.68
6. Step 6: Final answer
   x = 96,529.10