Finding the Fourth Proportional to 14,271.16, 21,410.38 and 5,503.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,271.16 : 21,410.38 = 5,503.72 : x
2. Step 2: Convert to fraction form
   14,271.16/21,410.38 = 5,503.72/x
3. Step 3: Cross multiply
   14,271.16x = 21,410.38 × 5,503.72
4. Step 4: Simplify right side
   14,271.16x = 117,836,736.61
5. Step 5: Solve for x
   x = 117,836,736.61/14,271.16
6. Step 6: Final answer
   x = 8,256.98