Finding the Fourth Proportional to 14,300.14, 21,450.60 and 3,911.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.14 : 21,450.60 = 3,911.89 : x
2. Step 2: Convert to fraction form
   14,300.14/21,450.60 = 3,911.89/x
3. Step 3: Cross multiply
   14,300.14x = 21,450.60 × 3,911.89
4. Step 4: Simplify right side
   14,300.14x = 83,912,387.63
5. Step 5: Solve for x
   x = 83,912,387.63/14,300.14
6. Step 6: Final answer
   x = 5,867.94