Finding the Fourth Proportional to 11,518.32, 17,262.90 and 7,356.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,518.32 : 17,262.90 = 7,356.72 : x
2. Step 2: Convert to fraction form
   11,518.32/17,262.90 = 7,356.72/x
3. Step 3: Cross multiply
   11,518.32x = 17,262.90 × 7,356.72
4. Step 4: Simplify right side
   11,518.32x = 126,998,321.69
5. Step 5: Solve for x
   x = 126,998,321.69/11,518.32
6. Step 6: Final answer
   x = 11,025.77