Finding the Fourth Proportional to 8,933.49, 13,401.27 and 3,390.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,933.49 : 13,401.27 = 3,390.99 : x
2. Step 2: Convert to fraction form
   8,933.49/13,401.27 = 3,390.99/x
3. Step 3: Cross multiply
   8,933.49x = 13,401.27 × 3,390.99
4. Step 4: Simplify right side
   8,933.49x = 45,443,572.56
5. Step 5: Solve for x
   x = 45,443,572.56/8,933.49
6. Step 6: Final answer
   x = 5,086.88