Finding the Fourth Proportional to 7,265.34, 9,960.66 and 7,134.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,265.34 : 9,960.66 = 7,134.12 : x
2. Step 2: Convert to fraction form
   7,265.34/9,960.66 = 7,134.12/x
3. Step 3: Cross multiply
   7,265.34x = 9,960.66 × 7,134.12
4. Step 4: Simplify right side
   7,265.34x = 71,060,543.72
5. Step 5: Solve for x
   x = 71,060,543.72/7,265.34
6. Step 6: Final answer
   x = 9,780.76