Finding the Fourth Proportional to 36,645, 50,570.37 and 19,878

Step by Step Solution

1. Step 1: Write the proportion equation
   36,645 : 50,570.37 = 19,878 : x
2. Step 2: Convert to fraction form
   36,645/50,570.37 = 19,878/x
3. Step 3: Cross multiply
   36,645x = 50,570.37 × 19,878
4. Step 4: Simplify right side
   36,645x = 1,005,237,814.86
5. Step 5: Solve for x
   x = 1,005,237,814.86/36,645
6. Step 6: Final answer
   x = 27,431.79