Finding the Fourth Proportional to 11,697.98, 17,514.77 and 8,878.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,697.98 : 17,514.77 = 8,878.37 : x
2. Step 2: Convert to fraction form
   11,697.98/17,514.77 = 8,878.37/x
3. Step 3: Cross multiply
   11,697.98x = 17,514.77 × 8,878.37
4. Step 4: Simplify right side
   11,697.98x = 155,502,476.56
5. Step 5: Solve for x
   x = 155,502,476.56/11,697.98
6. Step 6: Final answer
   x = 13,293.11