Finding the Fourth Proportional to 35,647.38, 49,196.61 and 20,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,647.38 : 49,196.61 = 20,740.50 : x
2. Step 2: Convert to fraction form
   35,647.38/49,196.61 = 20,740.50/x
3. Step 3: Cross multiply
   35,647.38x = 49,196.61 × 20,740.50
4. Step 4: Simplify right side
   35,647.38x = 1,020,362,289.71
5. Step 5: Solve for x
   x = 1,020,362,289.71/35,647.38
6. Step 6: Final answer
   x = 28,623.77