Finding the Fourth Proportional to 11,190.14, 15,443.15 and 7,406.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,190.14 : 15,443.15 = 7,406.83 : x
2. Step 2: Convert to fraction form
   11,190.14/15,443.15 = 7,406.83/x
3. Step 3: Cross multiply
   11,190.14x = 15,443.15 × 7,406.83
4. Step 4: Simplify right side
   11,190.14x = 114,384,786.71
5. Step 5: Solve for x
   x = 114,384,786.71/11,190.14
6. Step 6: Final answer
   x = 10,221.93