Finding the Fourth Proportional to 40,505.16, 60,759.90 and 12,801

Step by Step Solution

1. Step 1: Write the proportion equation
   40,505.16 : 60,759.90 = 12,801 : x
2. Step 2: Convert to fraction form
   40,505.16/60,759.90 = 12,801/x
3. Step 3: Cross multiply
   40,505.16x = 60,759.90 × 12,801
4. Step 4: Simplify right side
   40,505.16x = 777,787,479.90
5. Step 5: Solve for x
   x = 777,787,479.90/40,505.16
6. Step 6: Final answer
   x = 19,202.18