Finding the Fourth Proportional to 7,382.57, 10,182.69 and 7,138.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,382.57 : 10,182.69 = 7,138.49 : x
2. Step 2: Convert to fraction form
   7,382.57/10,182.69 = 7,138.49/x
3. Step 3: Cross multiply
   7,382.57x = 10,182.69 × 7,138.49
4. Step 4: Simplify right side
   7,382.57x = 72,688,979.82
5. Step 5: Solve for x
   x = 72,688,979.82/7,382.57
6. Step 6: Final answer
   x = 9,846.03