Finding the Fourth Proportional to 49,742.82, 68,651.28 and 28,521.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,742.82 : 68,651.28 = 28,521.72 : x
2. Step 2: Convert to fraction form
   49,742.82/68,651.28 = 28,521.72/x
3. Step 3: Cross multiply
   49,742.82x = 68,651.28 × 28,521.72
4. Step 4: Simplify right side
   49,742.82x = 1,958,052,585.80
5. Step 5: Solve for x
   x = 1,958,052,585.80/49,742.82
6. Step 6: Final answer
   x = 39,363.52