Finding the Fourth Proportional to 67,864.71, 93,661.39 and 39,191.37

Step by Step Solution

1. Step 1: Write the proportion equation
   67,864.71 : 93,661.39 = 39,191.37 : x
2. Step 2: Convert to fraction form
   67,864.71/93,661.39 = 39,191.37/x
3. Step 3: Cross multiply
   67,864.71x = 93,661.39 × 39,191.37
4. Step 4: Simplify right side
   67,864.71x = 3,670,718,190.20
5. Step 5: Solve for x
   x = 3,670,718,190.20/67,864.71
6. Step 6: Final answer
   x = 54,088.76