Finding the Fourth Proportional to 21,606, 32,412.24 and 7,758.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,606 : 32,412.24 = 7,758.24 : x
2. Step 2: Convert to fraction form
   21,606/32,412.24 = 7,758.24/x
3. Step 3: Cross multiply
   21,606x = 32,412.24 × 7,758.24
4. Step 4: Simplify right side
   21,606x = 251,461,936.86
5. Step 5: Solve for x
   x = 251,461,936.86/21,606
6. Step 6: Final answer
   x = 11,638.52