Finding the Fourth Proportional to 49,947, 68,928.84 and 28,726.24

Step by Step Solution

1. Step 1: Write the proportion equation
   49,947 : 68,928.84 = 28,726.24 : x
2. Step 2: Convert to fraction form
   49,947/68,928.84 = 28,726.24/x
3. Step 3: Cross multiply
   49,947x = 68,928.84 × 28,726.24
4. Step 4: Simplify right side
   49,947x = 1,980,066,400.76
5. Step 5: Solve for x
   x = 1,980,066,400.76/49,947
6. Step 6: Final answer
   x = 39,643.35