Finding the Fourth Proportional to 20,854.56, 31,277.52 and 7,697.94

Step by Step Solution

1. Step 1: Write the proportion equation
   20,854.56 : 31,277.52 = 7,697.94 : x
2. Step 2: Convert to fraction form
   20,854.56/31,277.52 = 7,697.94/x
3. Step 3: Cross multiply
   20,854.56x = 31,277.52 × 7,697.94
4. Step 4: Simplify right side
   20,854.56x = 240,772,472.31
5. Step 5: Solve for x
   x = 240,772,472.31/20,854.56
6. Step 6: Final answer
   x = 11,545.32