Finding the Fourth Proportional to 51,185.31, 70,637.91 and 28,524.33

Step by Step Solution

1. Step 1: Write the proportion equation
   51,185.31 : 70,637.91 = 28,524.33 : x
2. Step 2: Convert to fraction form
   51,185.31/70,637.91 = 28,524.33/x
3. Step 3: Cross multiply
   51,185.31x = 70,637.91 × 28,524.33
4. Step 4: Simplify right side
   51,185.31x = 2,014,899,055.35
5. Step 5: Solve for x
   x = 2,014,899,055.35/51,185.31
6. Step 6: Final answer
   x = 39,364.79