Finding the Fourth Proportional to 11,891.88, 16,404.66 and 11,047.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,891.88 : 16,404.66 = 11,047.59 : x
2. Step 2: Convert to fraction form
   11,891.88/16,404.66 = 11,047.59/x
3. Step 3: Cross multiply
   11,891.88x = 16,404.66 × 11,047.59
4. Step 4: Simplify right side
   11,891.88x = 181,231,957.77
5. Step 5: Solve for x
   x = 181,231,957.77/11,891.88
6. Step 6: Final answer
   x = 15,239.98