Finding the Fourth Proportional to 21,697.22, 32,550.72 and 7,658.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,697.22 : 32,550.72 = 7,658.25 : x
2. Step 2: Convert to fraction form
   21,697.22/32,550.72 = 7,658.25/x
3. Step 3: Cross multiply
   21,697.22x = 32,550.72 × 7,658.25
4. Step 4: Simplify right side
   21,697.22x = 249,281,350.40
5. Step 5: Solve for x
   x = 249,281,350.40/21,697.22
6. Step 6: Final answer
   x = 11,489.09