Finding the Fourth Proportional to 37,638.29, 51,941.56 and 20,641.52

Step by Step Solution

1. Step 1: Write the proportion equation
   37,638.29 : 51,941.56 = 20,641.52 : x
2. Step 2: Convert to fraction form
   37,638.29/51,941.56 = 20,641.52/x
3. Step 3: Cross multiply
   37,638.29x = 51,941.56 × 20,641.52
4. Step 4: Simplify right side
   37,638.29x = 1,072,152,749.57
5. Step 5: Solve for x
   x = 1,072,152,749.57/37,638.29
6. Step 6: Final answer
   x = 28,485.69