Finding the Fourth Proportional to 11,109.91, 15,325.91 and 8,081.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.91 : 15,325.91 = 8,081.62 : x
2. Step 2: Convert to fraction form
   11,109.91/15,325.91 = 8,081.62/x
3. Step 3: Cross multiply
   11,109.91x = 15,325.91 × 8,081.62
4. Step 4: Simplify right side
   11,109.91x = 123,858,218.57
5. Step 5: Solve for x
   x = 123,858,218.57/11,109.91
6. Step 6: Final answer
   x = 11,148.45