Finding the Fourth Proportional to 51,637.37, 71,259.37 and 28,976.31

Step by Step Solution

1. Step 1: Write the proportion equation
   51,637.37 : 71,259.37 = 28,976.31 : x
2. Step 2: Convert to fraction form
   51,637.37/71,259.37 = 28,976.31/x
3. Step 3: Cross multiply
   51,637.37x = 71,259.37 × 28,976.31
4. Step 4: Simplify right side
   51,637.37x = 2,064,833,595.52
5. Step 5: Solve for x
   x = 2,064,833,595.52/51,637.37
6. Step 6: Final answer
   x = 39,987.20