Finding the Fourth Proportional to 37,818.20, 52,188.69 and 20,822.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,818.20 : 52,188.69 = 20,822.10 : x
2. Step 2: Convert to fraction form
   37,818.20/52,188.69 = 20,822.10/x
3. Step 3: Cross multiply
   37,818.20x = 52,188.69 × 20,822.10
4. Step 4: Simplify right side
   37,818.20x = 1,086,678,195.31
5. Step 5: Solve for x
   x = 1,086,678,195.31/37,818.20
6. Step 6: Final answer
   x = 28,734.26