Finding the Fourth Proportional to 12,766.64, 19,144.72 and 4,872.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.64 : 19,144.72 = 4,872.03 : x
2. Step 2: Convert to fraction form
   12,766.64/19,144.72 = 4,872.03/x
3. Step 3: Cross multiply
   12,766.64x = 19,144.72 × 4,872.03
4. Step 4: Simplify right side
   12,766.64x = 93,273,650.18
5. Step 5: Solve for x
   x = 93,273,650.18/12,766.64
6. Step 6: Final answer
   x = 7,306.05