Finding the Fourth Proportional to 33,809.80, 46,641.82 and 21,877

Step by Step Solution

1. Step 1: Write the proportion equation
   33,809.80 : 46,641.82 = 21,877 : x
2. Step 2: Convert to fraction form
   33,809.80/46,641.82 = 21,877/x
3. Step 3: Cross multiply
   33,809.80x = 46,641.82 × 21,877
4. Step 4: Simplify right side
   33,809.80x = 1,020,383,096.14
5. Step 5: Solve for x
   x = 1,020,383,096.14/33,809.80
6. Step 6: Final answer
   x = 30,180.10