Finding the Fourth Proportional to 52,743.36, 72,786.06 and 28,870.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,743.36 : 72,786.06 = 28,870.32 : x
2. Step 2: Convert to fraction form
   52,743.36/72,786.06 = 28,870.32/x
3. Step 3: Cross multiply
   52,743.36x = 72,786.06 × 28,870.32
4. Step 4: Simplify right side
   52,743.36x = 2,101,356,843.74
5. Step 5: Solve for x
   x = 2,101,356,843.74/52,743.36
6. Step 6: Final answer
   x = 39,841.16