Finding the Fourth Proportional to 11,404.08, 15,728.04 and 7,422.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.08 : 15,728.04 = 7,422.12 : x
2. Step 2: Convert to fraction form
   11,404.08/15,728.04 = 7,422.12/x
3. Step 3: Cross multiply
   11,404.08x = 15,728.04 × 7,422.12
4. Step 4: Simplify right side
   11,404.08x = 116,735,400.24
5. Step 5: Solve for x
   x = 116,735,400.24/11,404.08
6. Step 6: Final answer
   x = 10,236.28