Finding the Fourth Proportional to 105,162.58, 145,124.69 and 67,436.98

Step by Step Solution

1. Step 1: Write the proportion equation
   105,162.58 : 145,124.69 = 67,436.98 : x
2. Step 2: Convert to fraction form
   105,162.58/145,124.69 = 67,436.98/x
3. Step 3: Cross multiply
   105,162.58x = 145,124.69 × 67,436.98
4. Step 4: Simplify right side
   105,162.58x = 9,786,770,817.04
5. Step 5: Solve for x
   x = 9,786,770,817.04/105,162.58
6. Step 6: Final answer
   x = 93,063.24