Finding the Fourth Proportional to 21,539.69, 32,296.31 and 8,376.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,539.69 : 32,296.31 = 8,376.72 : x
2. Step 2: Convert to fraction form
   21,539.69/32,296.31 = 8,376.72/x
3. Step 3: Cross multiply
   21,539.69x = 32,296.31 × 8,376.72
4. Step 4: Simplify right side
   21,539.69x = 270,537,145.90
5. Step 5: Solve for x
   x = 270,537,145.90/21,539.69
6. Step 6: Final answer
   x = 12,559.94