Finding the Fourth Proportional to 12,658.20, 17,465.61 and 7,350.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,658.20 : 17,465.61 = 7,350.27 : x
2. Step 2: Convert to fraction form
   12,658.20/17,465.61 = 7,350.27/x
3. Step 3: Cross multiply
   12,658.20x = 17,465.61 × 7,350.27
4. Step 4: Simplify right side
   12,658.20x = 128,376,949.21
5. Step 5: Solve for x
   x = 128,376,949.21/12,658.20
6. Step 6: Final answer
   x = 10,141.80