Finding the Fourth Proportional to 11,196.51, 15,461.56 and 7,224.45

Step by Step Solution

1. Step 1: Write the proportion equation
   11,196.51 : 15,461.56 = 7,224.45 : x
2. Step 2: Convert to fraction form
   11,196.51/15,461.56 = 7,224.45/x
3. Step 3: Cross multiply
   11,196.51x = 15,461.56 × 7,224.45
4. Step 4: Simplify right side
   11,196.51x = 111,701,267.14
5. Step 5: Solve for x
   x = 111,701,267.14/11,196.51
6. Step 6: Final answer
   x = 9,976.44