Finding the Fourth Proportional to 33,103.74, 45,677.87 and 21,777.81

Step by Step Solution

1. Step 1: Write the proportion equation
   33,103.74 : 45,677.87 = 21,777.81 : x
2. Step 2: Convert to fraction form
   33,103.74/45,677.87 = 21,777.81/x
3. Step 3: Cross multiply
   33,103.74x = 45,677.87 × 21,777.81
4. Step 4: Simplify right side
   33,103.74x = 994,763,974.06
5. Step 5: Solve for x
   x = 994,763,974.06/33,103.74
6. Step 6: Final answer
   x = 30,049.90