Finding the Fourth Proportional to 14,271.30, 21,401.42 and 4,909.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,271.30 : 21,401.42 = 4,909.54 : x
2. Step 2: Convert to fraction form
   14,271.30/21,401.42 = 4,909.54/x
3. Step 3: Cross multiply
   14,271.30x = 21,401.42 × 4,909.54
4. Step 4: Simplify right side
   14,271.30x = 105,071,127.55
5. Step 5: Solve for x
   x = 105,071,127.55/14,271.30
6. Step 6: Final answer
   x = 7,362.41