Finding the Fourth Proportional to 105,971.27, 146,155.73 and 69,709.95

Step by Step Solution

1. Step 1: Write the proportion equation
   105,971.27 : 146,155.73 = 69,709.95 : x
2. Step 2: Convert to fraction form
   105,971.27/146,155.73 = 69,709.95/x
3. Step 3: Cross multiply
   105,971.27x = 146,155.73 × 69,709.95
4. Step 4: Simplify right side
   105,971.27x = 10,188,508,281.96
5. Step 5: Solve for x
   x = 10,188,508,281.96/105,971.27
6. Step 6: Final answer
   x = 96,144.07