Finding the Fourth Proportional to 11,109.49, 15,323.58 and 7,135.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.49 : 15,323.58 = 7,135.43 : x
2. Step 2: Convert to fraction form
   11,109.49/15,323.58 = 7,135.43/x
3. Step 3: Cross multiply
   11,109.49x = 15,323.58 × 7,135.43
4. Step 4: Simplify right side
   11,109.49x = 109,340,255.82
5. Step 5: Solve for x
   x = 109,340,255.82/11,109.49
6. Step 6: Final answer
   x = 9,842.06