Finding the Fourth Proportional to 8,760.33, 12,088.17 and 5,222.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.33 : 12,088.17 = 5,222.79 : x
2. Step 2: Convert to fraction form
   8,760.33/12,088.17 = 5,222.79/x
3. Step 3: Cross multiply
   8,760.33x = 12,088.17 × 5,222.79
4. Step 4: Simplify right side
   8,760.33x = 63,133,973.39
5. Step 5: Solve for x
   x = 63,133,973.39/8,760.33
6. Step 6: Final answer
   x = 7,206.80