Finding the Fourth Proportional to 37,443.50, 51,672.29 and 20,447.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,443.50 : 51,672.29 = 20,447.31 : x
2. Step 2: Convert to fraction form
   37,443.50/51,672.29 = 20,447.31/x
3. Step 3: Cross multiply
   37,443.50x = 51,672.29 × 20,447.31
4. Step 4: Simplify right side
   37,443.50x = 1,056,559,229.80
5. Step 5: Solve for x
   x = 1,056,559,229.80/37,443.50
6. Step 6: Final answer
   x = 28,217.43