Finding the Fourth Proportional to 105,911.34, 146,103.61 and 67,630.64

Step by Step Solution

1. Step 1: Write the proportion equation
   105,911.34 : 146,103.61 = 67,630.64 : x
2. Step 2: Convert to fraction form
   105,911.34/146,103.61 = 67,630.64/x
3. Step 3: Cross multiply
   105,911.34x = 146,103.61 × 67,630.64
4. Step 4: Simplify right side
   105,911.34x = 9,881,080,650.61
5. Step 5: Solve for x
   x = 9,881,080,650.61/105,911.34
6. Step 6: Final answer
   x = 93,295.78