Finding the Fourth Proportional to 21,613.72, 32,401.14 and 7,759.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613.72 : 32,401.14 = 7,759.48 : x
2. Step 2: Convert to fraction form
   21,613.72/32,401.14 = 7,759.48/x
3. Step 3: Cross multiply
   21,613.72x = 32,401.14 × 7,759.48
4. Step 4: Simplify right side
   21,613.72x = 251,415,997.81
5. Step 5: Solve for x
   x = 251,415,997.81/21,613.72
6. Step 6: Final answer
   x = 11,632.24