Finding the Fourth Proportional to 11,104.92, 15,323.32 and 7,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,104.92 : 15,323.32 = 7,131.42 : x
2. Step 2: Convert to fraction form
   11,104.92/15,323.32 = 7,131.42/x
3. Step 3: Cross multiply
   11,104.92x = 15,323.32 × 7,131.42
4. Step 4: Simplify right side
   11,104.92x = 109,277,011.89
5. Step 5: Solve for x
   x = 109,277,011.89/11,104.92
6. Step 6: Final answer
   x = 9,840.41