Finding the Fourth Proportional to 9,059.27, 12,499.79 and 8,760.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059.27 : 12,499.79 = 8,760.61 : x
2. Step 2: Convert to fraction form
   9,059.27/12,499.79 = 8,760.61/x
3. Step 3: Cross multiply
   9,059.27x = 12,499.79 × 8,760.61
4. Step 4: Simplify right side
   9,059.27x = 109,505,760.70
5. Step 5: Solve for x
   x = 109,505,760.70/9,059.27
6. Step 6: Final answer
   x = 12,087.71