Finding the Fourth Proportional to 11,715.59, 17,498.51 and 10,603.23

Step by Step Solution

1. Step 1: Write the proportion equation
   11,715.59 : 17,498.51 = 10,603.23 : x
2. Step 2: Convert to fraction form
   11,715.59/17,498.51 = 10,603.23/x
3. Step 3: Cross multiply
   11,715.59x = 17,498.51 × 10,603.23
4. Step 4: Simplify right side
   11,715.59x = 185,540,673.17
5. Step 5: Solve for x
   x = 185,540,673.17/11,715.59
6. Step 6: Final answer
   x = 15,837.08