Finding the Fourth Proportional to 14,271.96, 21,407.78 and 5,500.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,271.96 : 21,407.78 = 5,500.72 : x
2. Step 2: Convert to fraction form
   14,271.96/21,407.78 = 5,500.72/x
3. Step 3: Cross multiply
   14,271.96x = 21,407.78 × 5,500.72
4. Step 4: Simplify right side
   14,271.96x = 117,758,203.60
5. Step 5: Solve for x
   x = 117,758,203.60/14,271.96
6. Step 6: Final answer
   x = 8,251.02