Finding the Fourth Proportional to 12,702.07, 17,529 and 7,665.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702.07 : 17,529 = 7,665.34 : x
2. Step 2: Convert to fraction form
   12,702.07/17,529 = 7,665.34/x
3. Step 3: Cross multiply
   12,702.07x = 17,529 × 7,665.34
4. Step 4: Simplify right side
   12,702.07x = 134,365,744.86
5. Step 5: Solve for x
   x = 134,365,744.86/12,702.07
6. Step 6: Final answer
   x = 10,578.26