Finding the Fourth Proportional to 49,539, 68,367.42 and 28,317.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,539 : 68,367.42 = 28,317.72 : x
2. Step 2: Convert to fraction form
   49,539/68,367.42 = 28,317.72/x
3. Step 3: Cross multiply
   49,539x = 68,367.42 × 28,317.72
4. Step 4: Simplify right side
   49,539x = 1,936,009,456.68
5. Step 5: Solve for x
   x = 1,936,009,456.68/49,539
6. Step 6: Final answer
   x = 39,080.51