Finding the Fourth Proportional to 105,062.50, 144,986.25 and 67,336.75

Step by Step Solution

1. Step 1: Write the proportion equation
   105,062.50 : 144,986.25 = 67,336.75 : x
2. Step 2: Convert to fraction form
   105,062.50/144,986.25 = 67,336.75/x
3. Step 3: Cross multiply
   105,062.50x = 144,986.25 × 67,336.75
4. Step 4: Simplify right side
   105,062.50x = 9,762,902,869.69
5. Step 5: Solve for x
   x = 9,762,902,869.69/105,062.50
6. Step 6: Final answer
   x = 92,924.72