Finding the Fourth Proportional to 8,012.47, 12,018.69 and 2,169.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,012.47 : 12,018.69 = 2,169.53 : x
2. Step 2: Convert to fraction form
   8,012.47/12,018.69 = 2,169.53/x
3. Step 3: Cross multiply
   8,012.47x = 12,018.69 × 2,169.53
4. Step 4: Simplify right side
   8,012.47x = 26,074,908.52
5. Step 5: Solve for x
   x = 26,074,908.52/8,012.47
6. Step 6: Final answer
   x = 3,254.29