Finding the Fourth Proportional to 67,931.54, 93,724.46 and 39,617.18

Step by Step Solution

1. Step 1: Write the proportion equation
   67,931.54 : 93,724.46 = 39,617.18 : x
2. Step 2: Convert to fraction form
   67,931.54/93,724.46 = 39,617.18/x
3. Step 3: Cross multiply
   67,931.54x = 93,724.46 × 39,617.18
4. Step 4: Simplify right side
   67,931.54x = 3,713,098,802.22
5. Step 5: Solve for x
   x = 3,713,098,802.22/67,931.54
6. Step 6: Final answer
   x = 54,659.42