Finding the Fourth Proportional to 67,857.48, 93,643.56 and 37,643.40

Step by Step Solution

1. Step 1: Write the proportion equation
   67,857.48 : 93,643.56 = 37,643.40 : x
2. Step 2: Convert to fraction form
   67,857.48/93,643.56 = 37,643.40/x
3. Step 3: Cross multiply
   67,857.48x = 93,643.56 × 37,643.40
4. Step 4: Simplify right side
   67,857.48x = 3,525,061,986.50
5. Step 5: Solve for x
   x = 3,525,061,986.50/67,857.48
6. Step 6: Final answer
   x = 51,948.02