Finding the Fourth Proportional to 57,694.50, 79,618.42 and 31,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,694.50 : 79,618.42 = 31,198.50 : x
2. Step 2: Convert to fraction form
   57,694.50/79,618.42 = 31,198.50/x
3. Step 3: Cross multiply
   57,694.50x = 79,618.42 × 31,198.50
4. Step 4: Simplify right side
   57,694.50x = 2,483,975,276.37
5. Step 5: Solve for x
   x = 2,483,975,276.37/57,694.50
6. Step 6: Final answer
   x = 43,053.94