Finding the Fourth Proportional to 37,667.63, 51,981.33 and 20,900.63

Step by Step Solution

1. Step 1: Write the proportion equation
   37,667.63 : 51,981.33 = 20,900.63 : x
2. Step 2: Convert to fraction form
   37,667.63/51,981.33 = 20,900.63/x
3. Step 3: Cross multiply
   37,667.63x = 51,981.33 × 20,900.63
4. Step 4: Simplify right side
   37,667.63x = 1,086,442,285.33
5. Step 5: Solve for x
   x = 1,086,442,285.33/37,667.63
6. Step 6: Final answer
   x = 28,842.87