Finding the Fourth Proportional to 11,353.76, 17,019.12 and 7,192.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,353.76 : 17,019.12 = 7,192.48 : x
2. Step 2: Convert to fraction form
   11,353.76/17,019.12 = 7,192.48/x
3. Step 3: Cross multiply
   11,353.76x = 17,019.12 × 7,192.48
4. Step 4: Simplify right side
   11,353.76x = 122,409,680.22
5. Step 5: Solve for x
   x = 122,409,680.22/11,353.76
6. Step 6: Final answer
   x = 10,781.42