Finding the Fourth Proportional to 14,643.50, 21,965.61 and 5,284.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,643.50 : 21,965.61 = 5,284.31 : x
2. Step 2: Convert to fraction form
   14,643.50/21,965.61 = 5,284.31/x
3. Step 3: Cross multiply
   14,643.50x = 21,965.61 × 5,284.31
4. Step 4: Simplify right side
   14,643.50x = 116,073,092.58
5. Step 5: Solve for x
   x = 116,073,092.58/14,643.50
6. Step 6: Final answer
   x = 7,926.59