Finding the Fourth Proportional to 40,112.50, 60,171.99 and 12,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,112.50 : 60,171.99 = 12,410.50 : x
2. Step 2: Convert to fraction form
   40,112.50/60,171.99 = 12,410.50/x
3. Step 3: Cross multiply
   40,112.50x = 60,171.99 × 12,410.50
4. Step 4: Simplify right side
   40,112.50x = 746,764,481.90
5. Step 5: Solve for x
   x = 746,764,481.90/40,112.50
6. Step 6: Final answer
   x = 18,616.75