Finding the Fourth Proportional to 40,578.01, 60,873.55 and 12,498.05

Step by Step Solution

1. Step 1: Write the proportion equation
   40,578.01 : 60,873.55 = 12,498.05 : x
2. Step 2: Convert to fraction form
   40,578.01/60,873.55 = 12,498.05/x
3. Step 3: Cross multiply
   40,578.01x = 60,873.55 × 12,498.05
4. Step 4: Simplify right side
   40,578.01x = 760,800,839.38
5. Step 5: Solve for x
   x = 760,800,839.38/40,578.01
6. Step 6: Final answer
   x = 18,749.09