Finding the Fourth Proportional to 11,223.34, 15,485.50 and 7,243.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,223.34 : 15,485.50 = 7,243.60 : x
2. Step 2: Convert to fraction form
   11,223.34/15,485.50 = 7,243.60/x
3. Step 3: Cross multiply
   11,223.34x = 15,485.50 × 7,243.60
4. Step 4: Simplify right side
   11,223.34x = 112,170,767.80
5. Step 5: Solve for x
   x = 112,170,767.80/11,223.34
6. Step 6: Final answer
   x = 9,994.42