Finding the Fourth Proportional to 8,145.04, 12,222.96 and 7,047.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145.04 : 12,222.96 = 7,047.76 : x
2. Step 2: Convert to fraction form
   8,145.04/12,222.96 = 7,047.76/x
3. Step 3: Cross multiply
   8,145.04x = 12,222.96 × 7,047.76
4. Step 4: Simplify right side
   8,145.04x = 86,144,488.57
5. Step 5: Solve for x
   x = 86,144,488.57/8,145.04
6. Step 6: Final answer
   x = 10,576.31