Finding the Fourth Proportional to 14,069.69, 21,105.24 and 4,209.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,069.69 : 21,105.24 = 4,209.05 : x
2. Step 2: Convert to fraction form
   14,069.69/21,105.24 = 4,209.05/x
3. Step 3: Cross multiply
   14,069.69x = 21,105.24 × 4,209.05
4. Step 4: Simplify right side
   14,069.69x = 88,833,010.42
5. Step 5: Solve for x
   x = 88,833,010.42/14,069.69
6. Step 6: Final answer
   x = 6,313.79