Finding the Fourth Proportional to 37,443, 51,671.60 and 20,446.81

Step by Step Solution

1. Step 1: Write the proportion equation
   37,443 : 51,671.60 = 20,446.81 : x
2. Step 2: Convert to fraction form
   37,443/51,671.60 = 20,446.81/x
3. Step 3: Cross multiply
   37,443x = 51,671.60 × 20,446.81
4. Step 4: Simplify right side
   37,443x = 1,056,519,387.60
5. Step 5: Solve for x
   x = 1,056,519,387.60/37,443
6. Step 6: Final answer
   x = 28,216.74