Finding the Fourth Proportional to 72,408.38, 99,818.87 and 50,832.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,408.38 : 99,818.87 = 50,832.42 : x
2. Step 2: Convert to fraction form
   72,408.38/99,818.87 = 50,832.42/x
3. Step 3: Cross multiply
   72,408.38x = 99,818.87 × 50,832.42
4. Step 4: Simplify right side
   72,408.38x = 5,074,034,469.60
5. Step 5: Solve for x
   x = 5,074,034,469.60/72,408.38
6. Step 6: Final answer
   x = 70,075.24