Finding the Fourth Proportional to 37,012.21, 51,078.05 and 20,245.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,012.21 : 51,078.05 = 20,245.21 : x
2. Step 2: Convert to fraction form
   37,012.21/51,078.05 = 20,245.21/x
3. Step 3: Cross multiply
   37,012.21x = 51,078.05 × 20,245.21
4. Step 4: Simplify right side
   37,012.21x = 1,034,085,848.64
5. Step 5: Solve for x
   x = 1,034,085,848.64/37,012.21
6. Step 6: Final answer
   x = 27,939.05