Finding the Fourth Proportional to 10,872.42, 16,307.60 and 3,474.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,872.42 : 16,307.60 = 3,474.89 : x
2. Step 2: Convert to fraction form
   10,872.42/16,307.60 = 3,474.89/x
3. Step 3: Cross multiply
   10,872.42x = 16,307.60 × 3,474.89
4. Step 4: Simplify right side
   10,872.42x = 56,667,078.41
5. Step 5: Solve for x
   x = 56,667,078.41/10,872.42
6. Step 6: Final answer
   x = 5,212.00