Finding the Fourth Proportional to 11,105.33, 15,323.88 and 7,131.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.33 : 15,323.88 = 7,131.83 : x
2. Step 2: Convert to fraction form
   11,105.33/15,323.88 = 7,131.83/x
3. Step 3: Cross multiply
   11,105.33x = 15,323.88 × 7,131.83
4. Step 4: Simplify right side
   11,105.33x = 109,287,230.48
5. Step 5: Solve for x
   x = 109,287,230.48/11,105.33
6. Step 6: Final answer
   x = 9,840.97