Finding the Fourth Proportional to 51,142.50, 70,577.73 and 28,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,142.50 : 70,577.73 = 28,786.50 : x
2. Step 2: Convert to fraction form
   51,142.50/70,577.73 = 28,786.50/x
3. Step 3: Cross multiply
   51,142.50x = 70,577.73 × 28,786.50
4. Step 4: Simplify right side
   51,142.50x = 2,031,685,824.65
5. Step 5: Solve for x
   x = 2,031,685,824.65/51,142.50
6. Step 6: Final answer
   x = 39,725.98