Finding the Fourth Proportional to 13,042.72, 19,551.78 and 4,271.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,042.72 : 19,551.78 = 4,271.94 : x
2. Step 2: Convert to fraction form
   13,042.72/19,551.78 = 4,271.94/x
3. Step 3: Cross multiply
   13,042.72x = 19,551.78 × 4,271.94
4. Step 4: Simplify right side
   13,042.72x = 83,524,031.05
5. Step 5: Solve for x
   x = 83,524,031.05/13,042.72
6. Step 6: Final answer
   x = 6,403.88