Finding the Fourth Proportional to 12,761.69, 17,605.08 and 8,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,761.69 : 17,605.08 = 8,514.72 : x
2. Step 2: Convert to fraction form
   12,761.69/17,605.08 = 8,514.72/x
3. Step 3: Cross multiply
   12,761.69x = 17,605.08 × 8,514.72
4. Step 4: Simplify right side
   12,761.69x = 149,902,326.78
5. Step 5: Solve for x
   x = 149,902,326.78/12,761.69
6. Step 6: Final answer
   x = 11,746.28