Finding the Fourth Proportional to 11,632.80, 17,411.76 and 8,127.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,632.80 : 17,411.76 = 8,127.12 : x
2. Step 2: Convert to fraction form
   11,632.80/17,411.76 = 8,127.12/x
3. Step 3: Cross multiply
   11,632.80x = 17,411.76 × 8,127.12
4. Step 4: Simplify right side
   11,632.80x = 141,507,462.93
5. Step 5: Solve for x
   x = 141,507,462.93/11,632.80
6. Step 6: Final answer
   x = 12,164.52