Finding the Fourth Proportional to 40,357.94, 60,498.03 and 12,649.46

Step by Step Solution

1. Step 1: Write the proportion equation
   40,357.94 : 60,498.03 = 12,649.46 : x
2. Step 2: Convert to fraction form
   40,357.94/60,498.03 = 12,649.46/x
3. Step 3: Cross multiply
   40,357.94x = 60,498.03 × 12,649.46
4. Step 4: Simplify right side
   40,357.94x = 765,267,410.56
5. Step 5: Solve for x
   x = 765,267,410.56/40,357.94
6. Step 6: Final answer
   x = 18,962.00