Finding the Fourth Proportional to 40,456.84, 60,659.89 and 12,367.55

Step by Step Solution

1. Step 1: Write the proportion equation
   40,456.84 : 60,659.89 = 12,367.55 : x
2. Step 2: Convert to fraction form
   40,456.84/60,659.89 = 12,367.55/x
3. Step 3: Cross multiply
   40,456.84x = 60,659.89 × 12,367.55
4. Step 4: Simplify right side
   40,456.84x = 750,214,222.57
5. Step 5: Solve for x
   x = 750,214,222.57/40,456.84
6. Step 6: Final answer
   x = 18,543.57