Finding the Fourth Proportional to 11,227.70, 15,499.33 and 7,999.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,227.70 : 15,499.33 = 7,999.61 : x
2. Step 2: Convert to fraction form
   11,227.70/15,499.33 = 7,999.61/x
3. Step 3: Cross multiply
   11,227.70x = 15,499.33 × 7,999.61
4. Step 4: Simplify right side
   11,227.70x = 123,988,497.77
5. Step 5: Solve for x
   x = 123,988,497.77/11,227.70
6. Step 6: Final answer
   x = 11,043.09