Finding the Fourth Proportional to 10,905.98, 16,361.33 and 3,886.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,905.98 : 16,361.33 = 3,886.38 : x
2. Step 2: Convert to fraction form
   10,905.98/16,361.33 = 3,886.38/x
3. Step 3: Cross multiply
   10,905.98x = 16,361.33 × 3,886.38
4. Step 4: Simplify right side
   10,905.98x = 63,586,326.25
5. Step 5: Solve for x
   x = 63,586,326.25/10,905.98
6. Step 6: Final answer
   x = 5,830.41