Finding the Fourth Proportional to 8,073.98, 12,113.13 and 3,145.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,073.98 : 12,113.13 = 3,145.04 : x
2. Step 2: Convert to fraction form
   8,073.98/12,113.13 = 3,145.04/x
3. Step 3: Cross multiply
   8,073.98x = 12,113.13 × 3,145.04
4. Step 4: Simplify right side
   8,073.98x = 38,096,278.38
5. Step 5: Solve for x
   x = 38,096,278.38/8,073.98
6. Step 6: Final answer
   x = 4,718.40