Finding the Fourth Proportional to 35,757.98, 49,397.48 and 28,578.69

Step by Step Solution

1. Step 1: Write the proportion equation
   35,757.98 : 49,397.48 = 28,578.69 : x
2. Step 2: Convert to fraction form
   35,757.98/49,397.48 = 28,578.69/x
3. Step 3: Cross multiply
   35,757.98x = 49,397.48 × 28,578.69
4. Step 4: Simplify right side
   35,757.98x = 1,411,715,124.81
5. Step 5: Solve for x
   x = 1,411,715,124.81/35,757.98
6. Step 6: Final answer
   x = 39,479.73