Finding the Fourth Proportional to 81,036.27, 111,808.62 and 51,974.69

Step by Step Solution

1. Step 1: Write the proportion equation
   81,036.27 : 111,808.62 = 51,974.69 : x
2. Step 2: Convert to fraction form
   81,036.27/111,808.62 = 51,974.69/x
3. Step 3: Cross multiply
   81,036.27x = 111,808.62 × 51,974.69
4. Step 4: Simplify right side
   81,036.27x = 5,811,217,804.78
5. Step 5: Solve for x
   x = 5,811,217,804.78/81,036.27
6. Step 6: Final answer
   x = 71,711.32