Finding the Fourth Proportional to 14,271.65, 21,411.12 and 5,504.21

Step by Step Solution

1. Step 1: Write the proportion equation
   14,271.65 : 21,411.12 = 5,504.21 : x
2. Step 2: Convert to fraction form
   14,271.65/21,411.12 = 5,504.21/x
3. Step 3: Cross multiply
   14,271.65x = 21,411.12 × 5,504.21
4. Step 4: Simplify right side
   14,271.65x = 117,851,300.82
5. Step 5: Solve for x
   x = 117,851,300.82/14,271.65
6. Step 6: Final answer
   x = 8,257.72