Finding the Fourth Proportional to 13,042.36, 19,530.15 and 7,192.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,042.36 : 19,530.15 = 7,192.48 : x
2. Step 2: Convert to fraction form
   13,042.36/19,530.15 = 7,192.48/x
3. Step 3: Cross multiply
   13,042.36x = 19,530.15 × 7,192.48
4. Step 4: Simplify right side
   13,042.36x = 140,470,213.27
5. Step 5: Solve for x
   x = 140,470,213.27/13,042.36
6. Step 6: Final answer
   x = 10,770.31