Finding the Fourth Proportional to 99,961.42, 149,949.87 and 33,401.78

Step by Step Solution

1. Step 1: Write the proportion equation
   99,961.42 : 149,949.87 = 33,401.78 : x
2. Step 2: Convert to fraction form
   99,961.42/149,949.87 = 33,401.78/x
3. Step 3: Cross multiply
   99,961.42x = 149,949.87 × 33,401.78
4. Step 4: Simplify right side
   99,961.42x = 5,008,593,381.37
5. Step 5: Solve for x
   x = 5,008,593,381.37/99,961.42
6. Step 6: Final answer
   x = 50,105.27