Finding the Fourth Proportional to 40,385.94, 60,581.34 and 12,683.94

Step by Step Solution

1. Step 1: Write the proportion equation
   40,385.94 : 60,581.34 = 12,683.94 : x
2. Step 2: Convert to fraction form
   40,385.94/60,581.34 = 12,683.94/x
3. Step 3: Cross multiply
   40,385.94x = 60,581.34 × 12,683.94
4. Step 4: Simplify right side
   40,385.94x = 768,410,081.68
5. Step 5: Solve for x
   x = 768,410,081.68/40,385.94
6. Step 6: Final answer
   x = 19,026.67