Finding the Fourth Proportional to 11,632.86, 16,072.16 and 8,111.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,632.86 : 16,072.16 = 8,111.79 : x
2. Step 2: Convert to fraction form
   11,632.86/16,072.16 = 8,111.79/x
3. Step 3: Cross multiply
   11,632.86x = 16,072.16 × 8,111.79
4. Step 4: Simplify right side
   11,632.86x = 130,373,946.21
5. Step 5: Solve for x
   x = 130,373,946.21/11,632.86
6. Step 6: Final answer
   x = 11,207.39