Finding the Fourth Proportional to 35,965.37, 49,624.70 and 21,815.48

Step by Step Solution

1. Step 1: Write the proportion equation
   35,965.37 : 49,624.70 = 21,815.48 : x
2. Step 2: Convert to fraction form
   35,965.37/49,624.70 = 21,815.48/x
3. Step 3: Cross multiply
   35,965.37x = 49,624.70 × 21,815.48
4. Step 4: Simplify right side
   35,965.37x = 1,082,586,293.16
5. Step 5: Solve for x
   x = 1,082,586,293.16/35,965.37
6. Step 6: Final answer
   x = 30,100.80