Finding the Fourth Proportional to 37,851.26, 52,235.98 and 20,856.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,851.26 : 52,235.98 = 20,856.20 : x
2. Step 2: Convert to fraction form
   37,851.26/52,235.98 = 20,856.20/x
3. Step 3: Cross multiply
   37,851.26x = 52,235.98 × 20,856.20
4. Step 4: Simplify right side
   37,851.26x = 1,089,443,732.76
5. Step 5: Solve for x
   x = 1,089,443,732.76/37,851.26
6. Step 6: Final answer
   x = 28,782.24