Finding the Fourth Proportional to 11,436.69, 17,156.16 and 3,538.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,436.69 : 17,156.16 = 3,538.90 : x
2. Step 2: Convert to fraction form
   11,436.69/17,156.16 = 3,538.90/x
3. Step 3: Cross multiply
   11,436.69x = 17,156.16 × 3,538.90
4. Step 4: Simplify right side
   11,436.69x = 60,713,891.73
5. Step 5: Solve for x
   x = 60,713,891.73/11,436.69
6. Step 6: Final answer
   x = 5,308.69