Finding the Fourth Proportional to 37,757.70, 52,105.89 and 20,990.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,757.70 : 52,105.89 = 20,990.82 : x
2. Step 2: Convert to fraction form
   37,757.70/52,105.89 = 20,990.82/x
3. Step 3: Cross multiply
   37,757.70x = 52,105.89 × 20,990.82
4. Step 4: Simplify right side
   37,757.70x = 1,093,745,357.93
5. Step 5: Solve for x
   x = 1,093,745,357.93/37,757.70
6. Step 6: Final answer
   x = 28,967.48