Finding the Fourth Proportional to 11,222.91, 15,474.78 and 7,184.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,222.91 : 15,474.78 = 7,184.39 : x
2. Step 2: Convert to fraction form
   11,222.91/15,474.78 = 7,184.39/x
3. Step 3: Cross multiply
   11,222.91x = 15,474.78 × 7,184.39
4. Step 4: Simplify right side
   11,222.91x = 111,176,777.31
5. Step 5: Solve for x
   x = 111,176,777.31/11,222.91
6. Step 6: Final answer
   x = 9,906.23