Finding the Fourth Proportional to 11,361.76, 17,031.12 and 7,200.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,361.76 : 17,031.12 = 7,200.48 : x
2. Step 2: Convert to fraction form
   11,361.76/17,031.12 = 7,200.48/x
3. Step 3: Cross multiply
   11,361.76x = 17,031.12 × 7,200.48
4. Step 4: Simplify right side
   11,361.76x = 122,632,238.94
5. Step 5: Solve for x
   x = 122,632,238.94/11,361.76
6. Step 6: Final answer
   x = 10,793.42