Finding the Fourth Proportional to 35,673.09, 49,223.61 and 20,564.57

Step by Step Solution

1. Step 1: Write the proportion equation
   35,673.09 : 49,223.61 = 20,564.57 : x
2. Step 2: Convert to fraction form
   35,673.09/49,223.61 = 20,564.57/x
3. Step 3: Cross multiply
   35,673.09x = 49,223.61 × 20,564.57
4. Step 4: Simplify right side
   35,673.09x = 1,012,262,127.38
5. Step 5: Solve for x
   x = 1,012,262,127.38/35,673.09
6. Step 6: Final answer
   x = 28,376.07