Finding the Fourth Proportional to 9,326.72, 13,991.57 and 3,086.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.72 : 13,991.57 = 3,086.96 : x
2. Step 2: Convert to fraction form
   9,326.72/13,991.57 = 3,086.96/x
3. Step 3: Cross multiply
   9,326.72x = 13,991.57 × 3,086.96
4. Step 4: Simplify right side
   9,326.72x = 43,191,401.49
5. Step 5: Solve for x
   x = 43,191,401.49/9,326.72
6. Step 6: Final answer
   x = 4,630.93