Finding the Fourth Proportional to 37,808.82, 52,179.39 and 20,816.37

Step by Step Solution

1. Step 1: Write the proportion equation
   37,808.82 : 52,179.39 = 20,816.37 : x
2. Step 2: Convert to fraction form
   37,808.82/52,179.39 = 20,816.37/x
3. Step 3: Cross multiply
   37,808.82x = 52,179.39 × 20,816.37
4. Step 4: Simplify right side
   37,808.82x = 1,086,185,488.61
5. Step 5: Solve for x
   x = 1,086,185,488.61/37,808.82
6. Step 6: Final answer
   x = 28,728.36