Finding the Fourth Proportional to 13,192.82, 18,205.50 and 7,224.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,192.82 : 18,205.50 = 7,224.36 : x
2. Step 2: Convert to fraction form
   13,192.82/18,205.50 = 7,224.36/x
3. Step 3: Cross multiply
   13,192.82x = 18,205.50 × 7,224.36
4. Step 4: Simplify right side
   13,192.82x = 131,523,147.61
5. Step 5: Solve for x
   x = 131,523,147.61/13,192.82
6. Step 6: Final answer
   x = 9,969.29