Finding the Fourth Proportional to 37,857.42, 52,242.53 and 20,863.23

Step by Step Solution

1. Step 1: Write the proportion equation
   37,857.42 : 52,242.53 = 20,863.23 : x
2. Step 2: Convert to fraction form
   37,857.42/52,242.53 = 20,863.23/x
3. Step 3: Cross multiply
   37,857.42x = 52,242.53 × 20,863.23
4. Step 4: Simplify right side
   37,857.42x = 1,089,947,814.86
5. Step 5: Solve for x
   x = 1,089,947,814.86/37,857.42
6. Step 6: Final answer
   x = 28,790.86