Finding the Fourth Proportional to 10,911.63, 16,361.91 and 5,072.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,911.63 : 16,361.91 = 5,072.34 : x
2. Step 2: Convert to fraction form
   10,911.63/16,361.91 = 5,072.34/x
3. Step 3: Cross multiply
   10,911.63x = 16,361.91 × 5,072.34
4. Step 4: Simplify right side
   10,911.63x = 82,993,170.57
5. Step 5: Solve for x
   x = 82,993,170.57/10,911.63
6. Step 6: Final answer
   x = 7,605.94