Finding the Fourth Proportional to 12,771.30, 17,620.95 and 7,467.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,771.30 : 17,620.95 = 7,467.42 : x
2. Step 2: Convert to fraction form
   12,771.30/17,620.95 = 7,467.42/x
3. Step 3: Cross multiply
   12,771.30x = 17,620.95 × 7,467.42
4. Step 4: Simplify right side
   12,771.30x = 131,583,034.45
5. Step 5: Solve for x
   x = 131,583,034.45/12,771.30
6. Step 6: Final answer
   x = 10,303.03