Finding the Fourth Proportional to 37,676.16, 51,991.04 and 20,908.16

Step by Step Solution

1. Step 1: Write the proportion equation
   37,676.16 : 51,991.04 = 20,908.16 : x
2. Step 2: Convert to fraction form
   37,676.16/51,991.04 = 20,908.16/x
3. Step 3: Cross multiply
   37,676.16x = 51,991.04 × 20,908.16
4. Step 4: Simplify right side
   37,676.16x = 1,087,036,982.89
5. Step 5: Solve for x
   x = 1,087,036,982.89/37,676.16
6. Step 6: Final answer
   x = 28,852.12