Finding the Fourth Proportional to 67,718.96, 93,463.56 and 39,441.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,718.96 : 93,463.56 = 39,441.20 : x
2. Step 2: Convert to fraction form
   67,718.96/93,463.56 = 39,441.20/x
3. Step 3: Cross multiply
   67,718.96x = 93,463.56 × 39,441.20
4. Step 4: Simplify right side
   67,718.96x = 3,686,314,962.67
5. Step 5: Solve for x
   x = 3,686,314,962.67/67,718.96
6. Step 6: Final answer
   x = 54,435.49