Finding the Fourth Proportional to 7,383.57, 10,184.07 and 7,139.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,383.57 : 10,184.07 = 7,139.49 : x
2. Step 2: Convert to fraction form
   7,383.57/10,184.07 = 7,139.49/x
3. Step 3: Cross multiply
   7,383.57x = 10,184.07 × 7,139.49
4. Step 4: Simplify right side
   7,383.57x = 72,709,065.92
5. Step 5: Solve for x
   x = 72,709,065.92/7,383.57
6. Step 6: Final answer
   x = 9,847.41