Finding the Fourth Proportional to 37,644.16, 51,948.58 and 20,648.05

Step by Step Solution

1. Step 1: Write the proportion equation
   37,644.16 : 51,948.58 = 20,648.05 : x
2. Step 2: Convert to fraction form
   37,644.16/51,948.58 = 20,648.05/x
3. Step 3: Cross multiply
   37,644.16x = 51,948.58 × 20,648.05
4. Step 4: Simplify right side
   37,644.16x = 1,072,636,877.27
5. Step 5: Solve for x
   x = 1,072,636,877.27/37,644.16
6. Step 6: Final answer
   x = 28,494.11