Finding the Fourth Proportional to 37,766.05, 52,117.76 and 20,771.05

Step by Step Solution

1. Step 1: Write the proportion equation
   37,766.05 : 52,117.76 = 20,771.05 : x
2. Step 2: Convert to fraction form
   37,766.05/52,117.76 = 20,771.05/x
3. Step 3: Cross multiply
   37,766.05x = 52,117.76 × 20,771.05
4. Step 4: Simplify right side
   37,766.05x = 1,082,540,494.99
5. Step 5: Solve for x
   x = 1,082,540,494.99/37,766.05
6. Step 6: Final answer
   x = 28,664.38