Finding the Fourth Proportional to 51,976.62, 71,727.72 and 28,103.30

Step by Step Solution

1. Step 1: Write the proportion equation
   51,976.62 : 71,727.72 = 28,103.30 : x
2. Step 2: Convert to fraction form
   51,976.62/71,727.72 = 28,103.30/x
3. Step 3: Cross multiply
   51,976.62x = 71,727.72 × 28,103.30
4. Step 4: Simplify right side
   51,976.62x = 2,015,785,633.48
5. Step 5: Solve for x
   x = 2,015,785,633.48/51,976.62
6. Step 6: Final answer
   x = 38,782.55