Finding the Fourth Proportional to 11,291.48, 15,565.92 and 7,923.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,291.48 : 15,565.92 = 7,923.86 : x
2. Step 2: Convert to fraction form
   11,291.48/15,565.92 = 7,923.86/x
3. Step 3: Cross multiply
   11,291.48x = 15,565.92 × 7,923.86
4. Step 4: Simplify right side
   11,291.48x = 123,342,170.85
5. Step 5: Solve for x
   x = 123,342,170.85/11,291.48
6. Step 6: Final answer
   x = 10,923.47