Finding the Fourth Proportional to 67,728, 93,470.88 and 37,920

Step by Step Solution

1. Step 1: Write the proportion equation
   67,728 : 93,470.88 = 37,920 : x
2. Step 2: Convert to fraction form
   67,728/93,470.88 = 37,920/x
3. Step 3: Cross multiply
   67,728x = 93,470.88 × 37,920
4. Step 4: Simplify right side
   67,728x = 3,544,415,769.60
5. Step 5: Solve for x
   x = 3,544,415,769.60/67,728
6. Step 6: Final answer
   x = 52,333.09