Finding the Fourth Proportional to 21,968.10, 32,928.89 and 7,173.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,968.10 : 32,928.89 = 7,173.05 : x
2. Step 2: Convert to fraction form
   21,968.10/32,928.89 = 7,173.05/x
3. Step 3: Cross multiply
   21,968.10x = 32,928.89 × 7,173.05
4. Step 4: Simplify right side
   21,968.10x = 236,200,373.90
5. Step 5: Solve for x
   x = 236,200,373.90/21,968.10
6. Step 6: Final answer
   x = 10,751.97