Finding the Fourth Proportional to 12,770.27, 19,147.56 and 5,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.27 : 19,147.56 = 5,271.50 : x
2. Step 2: Convert to fraction form
   12,770.27/19,147.56 = 5,271.50/x
3. Step 3: Cross multiply
   12,770.27x = 19,147.56 × 5,271.50
4. Step 4: Simplify right side
   12,770.27x = 100,936,266.80
5. Step 5: Solve for x
   x = 100,936,266.80/12,770.27
6. Step 6: Final answer
   x = 7,904.01