Finding the Fourth Proportional to 8,124.72, 12,186.60 and 3,510.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,124.72 : 12,186.60 = 3,510.96 : x
2. Step 2: Convert to fraction form
   8,124.72/12,186.60 = 3,510.96/x
3. Step 3: Cross multiply
   8,124.72x = 12,186.60 × 3,510.96
4. Step 4: Simplify right side
   8,124.72x = 42,786,665.14
5. Step 5: Solve for x
   x = 42,786,665.14/8,124.72
6. Step 6: Final answer
   x = 5,266.23