Finding the Fourth Proportional to 11,358.72, 17,030.79 and 7,458.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,358.72 : 17,030.79 = 7,458.57 : x
2. Step 2: Convert to fraction form
   11,358.72/17,030.79 = 7,458.57/x
3. Step 3: Cross multiply
   11,358.72x = 17,030.79 × 7,458.57
4. Step 4: Simplify right side
   11,358.72x = 127,025,339.37
5. Step 5: Solve for x
   x = 127,025,339.37/11,358.72
6. Step 6: Final answer
   x = 11,183.07