Finding the Fourth Proportional to 21,847.96, 32,751.18 and 13,928.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,847.96 : 32,751.18 = 13,928.25 : x
2. Step 2: Convert to fraction form
   21,847.96/32,751.18 = 13,928.25/x
3. Step 3: Cross multiply
   21,847.96x = 32,751.18 × 13,928.25
4. Step 4: Simplify right side
   21,847.96x = 456,166,561.43
5. Step 5: Solve for x
   x = 456,166,561.43/21,847.96
6. Step 6: Final answer
   x = 20,879.14