Finding the Fourth Proportional to 21,859, 32,779.86 and 10,757.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,859 : 32,779.86 = 10,757.56 : x
2. Step 2: Convert to fraction form
   21,859/32,779.86 = 10,757.56/x
3. Step 3: Cross multiply
   21,859x = 32,779.86 × 10,757.56
4. Step 4: Simplify right side
   21,859x = 352,631,310.74
5. Step 5: Solve for x
   x = 352,631,310.74/21,859
6. Step 6: Final answer
   x = 16,132.09