Finding the Fourth Proportional to 14,151.69, 21,227.59 and 4,291.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,151.69 : 21,227.59 = 4,291.05 : x
2. Step 2: Convert to fraction form
   14,151.69/21,227.59 = 4,291.05/x
3. Step 3: Cross multiply
   14,151.69x = 21,227.59 × 4,291.05
4. Step 4: Simplify right side
   14,151.69x = 91,088,650.07
5. Step 5: Solve for x
   x = 91,088,650.07/14,151.69
6. Step 6: Final answer
   x = 6,436.59