Finding the Fourth Proportional to 49,849.37, 74,788.17 and 20,288.42

Step by Step Solution

1. Step 1: Write the proportion equation
   49,849.37 : 74,788.17 = 20,288.42 : x
2. Step 2: Convert to fraction form
   49,849.37/74,788.17 = 20,288.42/x
3. Step 3: Cross multiply
   49,849.37x = 74,788.17 × 20,288.42
4. Step 4: Simplify right side
   49,849.37x = 1,517,333,803.99
5. Step 5: Solve for x
   x = 1,517,333,803.99/49,849.37
6. Step 6: Final answer
   x = 30,438.37