Finding the Fourth Proportional to 45,509.62, 67,908.38 and 40,781.49

Step by Step Solution

1. Step 1: Write the proportion equation
   45,509.62 : 67,908.38 = 40,781.49 : x
2. Step 2: Convert to fraction form
   45,509.62/67,908.38 = 40,781.49/x
3. Step 3: Cross multiply
   45,509.62x = 67,908.38 × 40,781.49
4. Step 4: Simplify right side
   45,509.62x = 2,769,404,919.89
5. Step 5: Solve for x
   x = 2,769,404,919.89/45,509.62
6. Step 6: Final answer
   x = 60,853.18