Finding the Fourth Proportional to 35,897.47, 49,537.72 and 20,790.79

Step by Step Solution

1. Step 1: Write the proportion equation
   35,897.47 : 49,537.72 = 20,790.79 : x
2. Step 2: Convert to fraction form
   35,897.47/49,537.72 = 20,790.79/x
3. Step 3: Cross multiply
   35,897.47x = 49,537.72 × 20,790.79
4. Step 4: Simplify right side
   35,897.47x = 1,029,928,333.60
5. Step 5: Solve for x
   x = 1,029,928,333.60/35,897.47
6. Step 6: Final answer
   x = 28,690.83