Finding the Fourth Proportional to 105,967.86, 146,151.09 and 69,706.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,967.86 : 146,151.09 = 69,706.56 : x
2. Step 2: Convert to fraction form
   105,967.86/146,151.09 = 69,706.56/x
3. Step 3: Cross multiply
   105,967.86x = 146,151.09 × 69,706.56
4. Step 4: Simplify right side
   105,967.86x = 10,187,689,724.15
5. Step 5: Solve for x
   x = 10,187,689,724.15/105,967.86
6. Step 6: Final answer
   x = 96,139.43