Finding the Fourth Proportional to 51,021.02, 76,145.69 and 49,692.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,021.02 : 76,145.69 = 49,692.42 : x
2. Step 2: Convert to fraction form
   51,021.02/76,145.69 = 49,692.42/x
3. Step 3: Cross multiply
   51,021.02x = 76,145.69 × 49,692.42
4. Step 4: Simplify right side
   51,021.02x = 3,783,863,453.38
5. Step 5: Solve for x
   x = 3,783,863,453.38/51,021.02
6. Step 6: Final answer
   x = 74,162.83