Finding the Fourth Proportional to 105,924.16, 146,121.27 and 67,643.47

Step by Step Solution

1. Step 1: Write the proportion equation
   105,924.16 : 146,121.27 = 67,643.47 : x
2. Step 2: Convert to fraction form
   105,924.16/146,121.27 = 67,643.47/x
3. Step 3: Cross multiply
   105,924.16x = 146,121.27 × 67,643.47
4. Step 4: Simplify right side
   105,924.16x = 9,884,149,743.61
5. Step 5: Solve for x
   x = 9,884,149,743.61/105,924.16
6. Step 6: Final answer
   x = 93,313.46